Danfoss MBS3000 060G1113 Pressure Transmitter

MBS 3000-1011-A1AB04-0

Generale industrial pressure transmitter, Pressione relativa, 4–20 mA output

✅ Key Specifications

Campo di misura: 0～1 bar (0～14.5 psi) Gauge

Output signal: 4–20mA (2-filo)

Alimentazione elettrica: 9～32 VDC, protezione da inversione di polarità

Collegamento di pressione: G1/4 external thread

Electrical connector: Angular DIN connector

Materiale bagnato: AISI 316L stainless steel

Precisione: Typical ±0.5%FS, max ±1%FS

Tempo di risposta: ≤4 ms

Overpressure: 4 sbarra; Pressione di scoppio 6 times full scale

Temperatura media: -40～+85 ℃

Temperatura ambiente: -40～+85 ℃

No built-in pulse snubber (MBS3050 equipped with snubber)

📌 Pin Definition (Angular DIN plug)

1. Fornitura +
2. Comune (segnale / supply return for 4–20mA)

2-cablaggio a filo: DC24V+ → Pin1; Pin2 → PLC AI module+; AI module→ DC24V-

🛠️ Typical Applications

HVAC, compressori d'aria, trattamento dell'acqua, light-duty hydraulics, low-pressure pipeline monitoring. Suitable for air, water and neutral media. Low range only, 0~1 bar, mainly used for micro / low pressure monitoring.

⚠️ Selection & Note di installazione

1. Medium must be compatible with 316L stainless steel; not suitable for strong corrosive media.
2. Do not exceed 4 bar overpressure; pressure spikes may damage the diaphragm.
3. Minimize pressure spikes during installation; MBS3050 with snubber is recommended for water hammer conditions.
4. Check total loop resistance of the 4–20mA circuit to meet the minimum supply voltage requirement of transmitter.
5. Classe di protezione: IP65 with connector properly tightened.

🧩 Alternative Reference

Alternativa domestica: Diffused silicon pressure transmitter, G1/4, 0-1sbarra, 4-20mA, 316diaframma L

Danfoss same-series replacement: Verify range, thread and connector type. 060G1113 is 0~1 bar gauge, do not confuse with 0~4bar / 0~10bar models.

📎 Model Code Decoding (MBS3000-1011-A1AB04-0)

MBS3000: Serie, no pulse snubber

1: Range code 0~1 bar gauge pressure

0: Output 4–20mA

1: G1/4 pressure connection

1: Angular DIN electrical connector

A1AB04-0: Costruzione, seal and option codes

1. Troubleshooting Checklist for MBS3000 060G1113 (2-wire 4-20mA)

Tools required: Multimetro digitale (mA & V range), insulation tester; Do NOT plug/unplug DIN connector under power.

1) Nessuna uscita / 0mA current

1. Power check: Measure voltage between Pin1-Pin2 of transmitter, normal operating voltage 9~32VDC. Output fails below 9V.
2. Polarity verification: Pin1=24V+, Pin2=signal return. Reverse polarity is protected internally, transmitter will not be damaged but no output.
3. Open circuit check: Disconnetti PLC lato, insert multimeter in series to measure loop current. If still 0mA, inspect DIN connector crimping and wire breakage.
4. Water ingress / oxidation at connector: Failed sealing of angular DIN plug causes terminal corrosion; check for water stains or green rust.
5. Severe diaphragm damage from overpressure: Long-term pressure exceeding 4bar deforms diaphragm and damages internal sensing element.
6. Fixed at 4mA (minimum reading, no response to pressure change)
7. Open circuit in loop (più comune): Broken wire, loose terminal or poor crimp in DIN plug.
8. Diaphragm jammed: Medium crystallization, sludge or solid particles blocking diaphragm, pressure cannot be transferred.
9. Internal hardware failure of transmitter, sensing element damaged.

Quick test: Disconnect transmitter, short the loop. If PLC reads ~20mA, PLC module and wiring are good, fault lies in transmitter.

3. Fixed at 20mA (full scale reading, no response to pressure change)
4. Short circuit in loop: Cable insulation damage causing short between positive and negative cores, shorted terminals inside DIN plug.
5. Permanent damage caused by sustained overpressure; bulged diaphragm locks sensor output at full scale.
6. Strongly corrosive medium penetrates 316L diaphragm and causes internal leakage.

Quick test: Remove transmitter, if PLC reading drops back, module is healthy, fault in transmitter or field wiring.

4. Signal drift (zero offset, reading slowly fluctuates while pressure remains stable)
5. Thermal drift: Medium temperature out of range -40~85℃ or drastic temperature cycling. MBS3000 has no high-grade temperature compensation chip, drift occurs under extreme temperature.
6. Residual stress on diaphragm: Excessive tightening torque transfers stress to diaphragm; Recommended max torque ≤25 Nm for MBS3000.
7. Medium deposit: Oil scale or limescale adheres to diaphragm and gradually shifts zero point.
8. Alimentazione instabile: High ripple on switching power supply causes voltage fluctuation.
9. Aging drift: Degradation of sensing element after long service time.

Calibrazione: Vent to atmospheric pressure to check if reading returns to 0bar (4mA). Large deviation requires zero correction, MBS3000 has no local zero adjustment knob, correction can only be done via controller software.

5. Fluttuazione del segnale / noisy reading
6. Interferenza elettromagnetica (top reason)

Ground loop caused by shield grounding at both ends. Correct practice: Shield grounded only at control cabinet end, shield at transmitter end kept floating.

Signal cable routed together with power cables (contattori, motor cables). Separate routing with minimum distance ≥30cm; cross cables perpendicularly, avoid parallel laying.

2. Pressure shock / water hammer: Instant pressure spikes vibrate diaphragm even for 0~1bar range; switch to MBS3050 with built-in snubber if water hammer exists.
3. Terminali del cablaggio allentati: Poor crimp of DIN terminals, contact resistance varies under vibration.
4. Insufficient filtering on PLC module: Short filter time on AI channel amplifies noise. Increase channel filtering time.
5. Air bubbles in medium: Bubbles hitting diaphragm cause signal jitter for liquid pipelines.
6. Guasto intermittente (reading unstable, works occasionally)

Vibration loosens connector or causes internal wire break at bending points.

Insulation expansion/contraction with temperature change leads to intermittent short/open circuit.

Condensation inside plug under high humidity, intermittent connection.

2. Danfoss Same Series Comparison (MBS3000 / MBS3050 / MBS3100)

Other Danfoss Pressure Transmitter Series (Alternative)

1. MBS4500: High accuracy version, ±0.25%FS, elevata immunità EMC; precision process and lab use; higher price than MBS3000.
2. MBS5100: Heavy-duty industrial, high overpressure rating for heavy hydraulics and high-pressure systems; thick diaphragm, not suitable for 0~1bar micro pressure measurement.
3. MBS9200: Differential pressure transmitter for measuring pressure difference between two points, cannot replace gauge pressure MBS3000.

✅ Replacement Selection Checklist (for 060G1113)

Verificare 4 parameters at the same time:

1. Pressure type: Gauge, measuring range 0~1 bar
2. Produzione: 2-wire 4-20mA
3. Collegamento di pressione: G1/4 external thread
4. Electrical connector: Angular DIN connector

Danfoss MBS3000 060G1113 Installation Instructions (0~1bar, G1/4, Angular DIN)

Divided into mechanical installation, electrical installation, medio & operating condition, pre-commissioning check and prohibited operations, tailored for this low-range gauge transmitter.

1. Installazione meccanica (G1/4 external thread)
2. Coppia di serraggio: Recommended ≤25 N·m. Never use wrench on black plastic DIN connector; only clamp the metal hexagon for tightening. Excessive torque creates residual stress on diaphragm, zero drift and permanent sensor damage.
3. Thread sealing: G1/4 is non-sealing cylindrical pipe thread. PTFE tape or thread sealant is recommended. Wrap PTFE tape on external thread, do not wrap tape to thread tip to prevent debris entering pressure cavity and blocking diaphragm. Thick gaskets for lifting transmitter are prohibited.
4. Orientamento di montaggio

Liquid pipeline: Mount diaphragm horizontally or facing downward to avoid air bubbles trapped on diaphragm surface causing signal noise.

Gas pipeline: Mount diaphragm upward to prevent condensate accumulating on diaphragm.

Cable entry of angular DIN plug points downward, preventing rainwater / condensate flowing into plug and breaking IP65 protection.

4. Pressure tap selection

Tap hole on side of pipeline, avoid bottom (sediment accumulation blocking diaphragm) or top (accumulo di gas).

Add short nipple and support bracket for high vibration pipeline to reduce vibration transfer to transmitter.

5. Pressure protection (this model only 0~1bar range)

Max continuous overpressure 4 sbarra. Burst pressure is much higher, but instantaneous water hammer spike can easily rupture diaphragm. MBS3000 has no built-in snubber, switch to MBS3050 if pressure spike / water hammer exists.

Remove transmitter or isolate with shut-off valve before pipeline hydro test. Never perform pipeline purging with transmitter mounted, high-speed particles scratch 316L diaphragm.

6. Thermal isolation: Fit cooling nipple / heat dissipation sleeve when medium temperature approaches upper limit 85℃, reduce heat conduction to transmitter body and avoid thermal drift.
7. Electrical Installation (Angular DIN EN175301-803-A, 2-wire 4-20mA)
8. Power-off wiring rule: Disconnect 24V power before wiring or plug/unplug DIN connector. Arcing under live condition may damage internal circuit.
9. Assegnazione dei pin: Pin1 = 24V+; Pin2 = signal return (-); Pin3 unused. La polarità deve essere corretta. Reverse polarity protected but no output.
10. Cable selection & shielding

Raccomandato: 0.5~0.75mm² shielded twisted pair cable; use 0.75mm² for distance >100M.

Scudo: Ground shield only at control cabinet end, leave shield floating at transmitter DIN plug side. Grounding at both ends creates ground loop and signal noise.

Separate signal cables from power cables, minimum distance ≥30cm; cross perpendicularly, avoid parallel routing.

4. Loop load: Max allowable loop resistance approx. 600Ω at DC24V supply; PLC AI module internal resistance ≤250Ω normally, soddisfa i requisiti.
5. Classe di protezione: IP65 only when DIN plug fully tightened and intact sealing gasket fitted. Mancante / damaged gasket causes water ingress and terminal corrosion.
6. Medio & Ambient Requirements
7. Wetted material AISI316L stainless steel: Medium must be compatible with 316L. Clean water and compressed air are acceptable. Non adatto per acidi forti, strong alkali or high chloride corrosive medium. Medium cannot contain large solid particles to avoid diaphragm scratch.
8. Intervallo di temperatura

Temperatura media: -40 ~ +85℃

Temperatura ambiente: -40 ~ +85℃

Temperature out of range increases thermal drift significantly or permanently damages sensing element.

3. Ambiente: Avoid direct long-time sunlight, strong vibration, strong electromagnetic equipment (inverter, contattore) installed nearby. Transmitter housing can connect protective earth.
4. Pre-commissioning Check List
5. Meccanico: Confirm thread leak-free, correct tightening torque, pressure shut-off valve closed.
6. Elettrico: Verify wiring with multimeter, no short / circuito aperto; double check Pin1/Pin2 polarity before power-up.
7. No-load calibration after power on: Vent to atmospheric pressure (0sbarra), loop current should read 4mA.
8. Slowly open pressure valve and pressurize gradually, sudden full opening causing pressure shock is prohibited. Check current 20mA at full scale 1bar.
9. Monitor reading for 5~10 minutes, confirm stable reading without drift or noise.
10. Operazioni vietate

❌ Do NOT tighten transmitter by clamping black plastic DIN connector with wrench

❌ Do NOT perform pipeline purging or pressure test with transmitter mounted

❌ Do NOT subject to sustained pressure over 4 bar or instantaneous water hammer shock

❌ Do NOT ground cable shield at both ends

❌ Do NOT exceed medium temperature limit 85℃

❌ Do NOT touch diaphragm with hard objects; scratched or dented diaphragm is permanently damaged

❌ MBS3000 has no local zero adjustment knob, do NOT disassemble transmitter for calibration

6. Recommended Accessories for Installation

Pressure shut-off valve (for isolation and transmitter replacement online)

Cooling nipple (high temperature medium)

PTFE thread tape

Shielded twisted pair cable

Spare sealing gasket for DIN plug

Danfoss Industrial Pressure Transmitter Product List (MBS / DST / AKS)

Grouped by application, highlight difference vs MBS3000 (060G1113) for model selection & sostituzione

1. Main MBS Industrial Series
2. MBS1200 / MBS1250｜Compact OEM for mobile hydraulics

MBS1200: No pulse snubber; MBS1250: Built-in pulse snubber

Applicazione: Macchine edili, mobile hydraulics, on-board equipment; vibrazione elevata & resistenza agli urti

Produzione: Mostly ratiometric voltage output, few 4-20mA types; Max medium temp 125℃

Allineare: 0~10bar to 0~600bar

2. MBS1700 / MBS1750｜Economical general transmitter

MBS1700: No snubber; MBS1750: With pulse snubber

Applicazione: HVAC, compressore d'aria, trattamento dell'acqua, low-cost alternative for MBS3000

Precisione: ±0,5%FS; 316diaframma L; angular DIN plug, similar outline to MBS3000

3. MBS3000 / MBS3050【Your reference series】

MBS3000: No pulse snubber, fast response ≤4ms; reference model 060G1113 (0~1bar gauge, G1/4, angular DIN, 4-20mA)

MBS3050: Same outline, built-in pulse snubber, suppress water hammer and pressure spikes; preferred for pump outlet

Produzione: 4-20mA, 0-10V; misura / absolute pressure optional; range 0~1bar～0~600bar; wetted AISI316L

Typical industry: HVAC, compressore d'aria, acqua pulita, low-pressure process

4. MBS3100 / MBS3150｜Compact small size

MBS3100 no snubber, MBS3150 with snubber; compact footprint for limited mounting space

Protezione IP67; better vibration resistance than MBS3000; multiple thread options; alloggi diversi, cannot mechanically replace MBS3000 without verification

5. MBS3200 / MBS3250｜High temperature type

MBS3200 no snubber, MBS3250 with snubber; high medium temperature version

Suitable for hot water, heat traced pipeline, high temperature process medium

6. MBS3300 / MBS3350｜Compact high temperature

Dedicated high temperature application; withstand higher medium temperature; 316L wetted part; acqua calda & hot oil circuit

7. MBS33 / MBS33M｜Marine high accuracy

MBS33M: Marine certified version, vibrazione elevata & Immunità EMC, class certification; range 0~1bar~600bar

Accuracy ±0.3%FS; 4-20mA; misura / pressione assoluta; seawater and marine pipeline pressure monitoring

8. MBS4000 / MBS4050｜High accuracy general industrial

MBS4000 no snubber; MBS4050 with snubber; accuracy ±0.3%FS; support field zero & span adjustment

Industrial process, precision pressure monitoring; higher accuracy than MBS3000

9. MBS4201 / MBS4251｜Explosion-proof (Ex)

MBS4201 no snubber; MBS4251 with snubber; intrinsically safe certified for hazardous area (chimico, gas)

4-20mA 2-wire; 316diaframma L; 普通MBS3000 cannot be used in explosion hazardous area

10. MBS4500 / MBS4510｜High accuracy field calibratable

MBS4500: Basic high accuracy; MBS4510: With flush diaphragm; accuracy ±0.25%FS

Built-in zero and span adjustment; lab & precision process; costo più elevato

11. MBS4701 / MBS4751｜Explosion-proof high accuracy

MBS4701 no snubber; MBS4751 with snubber; a prova di esplosione + alta precisione; chemical hazardous process

12. MBS5100 / MBS5150｜Heavy-duty industrial / heavy hydraulics

MBS5100 no snubber; MBS5150 with snubber; thick diaphragm, high overpressure rating; heavy hydraulics, minerario, high pressure pump station

Range starts from high pressure, not suitable for 0~1bar micro pressure measurement

13. MBS8200 / MBS8250｜New generation heavy-duty high performance

MBS8200 no snubber; MBS8250 with snubber; superior EMC immunity (100V/m); max medium temp 125℃; functional safety available

Mobile hydraulics, high pressure shock application

14. MBS9200 / MBS9300｜Differential pressure transmitter

Differential pressure measurement (pressure difference between two points), not gauge pressure; fluire & level DP measurement; cannot replace gauge pressure MBS3000

2. DST Series New Generation Digital / Corrosion Resistant Transmitter
3. DST P300 / DST P30M: General digital pressure sensor, 4-20mA / digital signal, compact form
4. DST P40M: Stainless steel general model
5. DST P40I: Titanium wetted part, for corrosive medium (seawater, chemical brine), corrosion upgrade alternative for 316L
6. AKS Series (HVAC & Refrigeration dedicated Danfoss product line)

Mainly for chiller, conservazione frigorifera, refrigerant pressure monitoring, not recommended for general water / compressed air process

AKS 32: Refrigeration pressure transmitter, 4-20mA

AKS 33: Refrigeration high/low pressure, dedicated for R-series refrigerant

AKS 4100: Refrigerant pressure sensor

EMP2 Embedded Pressure Sensor

OEM miniature pressure sensor, built-in equipment installation, rarely used as standalone field transmitter

📋 Quick Selection Comparison Table

✅ 4 Parameters to Verify for MBS3000 060G1113 Replacement

1. Pressure type: Gauge, measuring range 0~1 bar
2. Produzione: 2-wire 4-20mA
3. Collegamento di pressione: G1/4 external thread
4. Electrical connector: Angular DIN connector