| 分野 | コード | 説明 |
| シリーズ | 40T | Universal process indicator / alarm unit (画面 & alarm only, NOT a PID temperature controller) |
| Panel size | 48 | 48×48mm (1/16 から, 切り取る: 45×45mm) |
| Display digits | 4 | 4-digit LED display |
| Transmitter supply | 0 | No built-in sensor power supply |
| 出力 1 + 出力 2 | RR | OUT1=Relay; OUT2=Relay |
| 評価: 5あ / 250VAC, 通常開 (いいえ) 接触 | ||
| 3rd output | 0 | No 3rd relay output |
| デジタル入力 / Analog retransmission | 0 | No digital DI, no 4~20mA analog retransmission output |
| 通信インターフェース | 0 | No RS485 communication (Modbus unsupported) |
| 電源 | 0 | 11~27 VAC/VDC universal AC/DC power supply |
| (サフィックス 1 = 100~240VAC wide-range power) |
- 主な技術仕様
- ユニバーサル入力 (Configurable via front panel buttons)
熱電対: K, J, E, T, R, S, B, N, 等.
測温抵抗体: Pt100 (2-ワイヤー / 3-ワイヤー)
Linear signals: 4~20mA, 0~20mA, 0~10V, 0~60mV, 等.
- 正確さ: ±0.2%FS ±1 digit
- Front panel protection: IP65
- Overall depth: 99 mm
- Sampling cycle: 15~120ms adjustable
- 機能: Process value display, まで 2 independent alarms, sensor break/short circuit detection; No PID control function
- 重要なメモ
✅ Positioning: Digital indicator with alarm, cannot directly control temperature; only for monitoring + switch alarm output
❌ No RS485 communication, cannot connect to PLC bus
❌ No 4~20mA retransmission output
❌ No built-in 24V sensor power supply
✅ Compatible with DC24V / AC24V power supply
- Common Alternative & Variant Models of the Series
40T-48-4-00-RR-0-0-0-1: Power supply changed to 100~240VAC
40T-48-4-00-RR-0-2-0-0: Equipped with additional 4~20mA analog retransmission output
40T-48-4-24-RR-0-0-0-0: Built-in 24V transmitter power supply
危険 40T-48-4-00-RR-0-0-0-0 Dimension Parameters
- Overall dimension (W × H × Depth)
48 mm× 48 mm× 99 mm
標準 1/16 DIN form factor
- Cabinet mounting cutout dimension
45 mm× 45 mm
Recommended machining tolerance: +0.5mm
- 補足情報
Front panel rating: IP65
Instrument rear depth (inside cabinet): 99mm; reserve ≥105mm internal space for wiring during cabinet design
Model 40T-96 in the same series is horizontal 96×48 version, do not confuse
GEFRAN 40T-48 Measurement Accuracy
Official Nominal Accuracy
- 熱電対 / RTD Input
±0.2% Full Scale (FS) ±1 digit
Test condition: Ambient temperature 25℃
- Linear Analog Input (mV, 0~10V, 0/4~20mA)
±0.2% Full Scale (FS) ±1 digit
Temperature Drift
When ambient temperature deviates from 25℃:
≤ ±0.01% FS / ℃
Important Supplementary Notes
- 解決: 4-digit LED display, minimum display unit 1 桁
- Accuracy only refers to instrument itself, excluding sensor error
- Alarm actuation accuracy follows measurement accuracy with no additional deviation
- 制限: No PID regulation, only measurement & アラーム; no control accuracy index
Practical Example
Range set as 0~200℃:
Maximum instrument measurement error ≈ ±0.4℃ ±1 digit
危険 40T-48-4-00-RR-0-0-0-0 出力構成
Model output segment: …00-RR-0-0-0-0
- RR = OUT1, OUT2
- 7th digit `0`: No 3rd output
- 8th digit `0`: No analog retransmission output
- 9th digit `0`: No communication interface
- Onboard Outputs
2 Relay Outputs
Contact form: 通常開 (いいえ)
接点定格: 5あ / 250VAC; 5あ / 30VDC (抵抗負荷)
応用: High/low limit alarm, limit switch signal; can drive small contactors and indicator lights
✅ Feature: Independent alarm outputs; alarm value and mode (high/low limit, deviation alarm, 等) can be configured separately
- Outputs NOT available on this model
- ❌ No 4~20mA / 0~10V analog retransmission output (digit = 0, not 2)
- ❌ No SSR drive voltage output
- ❌ No RS485 Modbus communication
- ❌ No NPN/PNP transistor logic output
- ❌ No PID control output (this unit is only for monitoring & アラーム, incapable of temperature regulation)
- Optional Output Combinations of the Series (for model selection reference)
RR: Dual relay (current model)
RS: OUT1 Relay + OUT2 SSR drive output
SS: Dual SSR drive outputs
Suffix digit `2`: Extra 4~20mA analog retransmission output
Suffix digit `4`: RS485 Modbus RTU interface
Wiring Reminder
Relays are passive dry contacts. External power supply is required. The instrument does not supply internal power to contacts; do not connect directly to sensor circuits.
危険 40T-48-4-00-RR-0-0-0-0 Relay Operation Mode
✅ Both OUT1 and OUT2 relays support custom configuration via front panel
知らせ: This is a digital alarm indicator without PID control. Relays can only be used as alarm outputs, not temperature control outputs.
- Configurable Alarm Modes (Independent for two relays)
- Absolute High Alarm (Hi)
Relay energizes when measured value setpoint
- Absolute Low Alarm (Lo)
Relay energizes when measured value < 設定値
- Deviation Alarm (ポジティブ / Negative Deviation)
Trigger based on deviation relative to setpoint (commonly used for differential monitoring)
- Sensor Break Alarm
Relay activates on thermocouple/Pt100 open circuit or signal over-range
- Adjustable Auxiliary Parameters
Alarm Hysteresis: Prevent relay rapid cycling (chatter)
Alarm Latch: Relay stays energized after alarm trigger; manual panel reset required
Power-up Alarm Suppression: Temporarily disable alarms at startup to avoid false triggering
Contact Logic: Select energized on alarm OR de-energized on alarm
- Critical Limitations
- Hardware contacts are Normally Open dry contacts. Physical hardware cannot be changed to Normally Closed; “de-energized on alarm” is realized purely by software logic.
- Cannot be configured as PID on/off control output (40T series is indicator, not PID controller like 400 / 2500 シリーズ).
- OUT1 and OUT2 work independently; combination such as high limit on one channel and low limit on the other is supported.
- Parameter Access Procedure
Long press [F key] のために 2 seconds → Enter default password 99
Navigate within `CFG` menu group:
o.1: OUT1 alarm setpoint
o.2: OUT2 alarm setpoint
Select alarm type, hysteresis, latch function and power-up suppression in corresponding submenus
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