YOKOGAWA UT37

Yokogawa UT37 UT37E Digital Indicating Controller

Discontinued–Replaced by UT4501 or UT551-1  

Model Number: UT37E (w/ hardware) 

Serial Number : N/A 

Electrical : 100-240VAC, 50/60Hz 

Includes Hardware 

Copy of User Manual & Calibration Instructions Included 

Product Description: 

The U37 digital indicating controller uses a universal input/output system. The UT37 is a highly accurate and sophisticated, easy-to-operate digital indicating controller with an input sampling period of 200ms and measurement accuracy of +0.2%. 

Specifications: 

Input Sampling Period: 200ms 

Input Accuracy: ±0.2 (or ±0.25%) of F.S. ±1 digit 

Input Resistance: Thermocouple Input: 1M ohm or more; Voltage Input Approx: 1M ohms 

Permissible Signal Source Resistance: Thermocouple: 250 ohms or less; Voltage: 2K ohms or less 

Permissible Wiring Resistance: RTD Input: 10 ohms or less/wire 

Permissible Input Voltage: Thermocouple, DC Voltage/Current Input: Within ±10V 

Noise Rejection Ratio: Normal Mode: 40dB (50/60Hz) or more; Common Mode: 120dB (50/60Hz) or more 

Filter: OFF, 1 to 120 sec (first order lag. OFF: no filter) 

Measured Input Bias: -100.0 to 100% of measuring span 

Thermocouple Standards: IEC/DIN (U and L)/JIS 

RTD Standards: IEC/DIN/JIS ’89 JPT100, PT100 

Display Contents: Process Variable (PV), Setpoint/Parameter, Status Lamps (6) 

Process Variable Display: 4-digit, 7-segment LEDs (red) 

Setpoint or Parameter Display: 3-digit 4-digit, 7-segment LEDs (red) 

Deviation Monitor: Green LED lights when deviation is within ±1.0 of F.S. If deviation exceeds this range, Orange LED lights. 

Measured Input: Within instrument range 

Target Value (setpoint): 0 to 100% of the range 

Setpoint High and Low Limits: 0 to 100% of the range 

Proportional Band (P): 0.1 to 999.9% 

Integral Time (I): OFF, 1 to 6000sec (OFF: Integral action is OFF) 

Derivative Time (D): OFF, 1 to 6000sec (OFF: Derivative action is OFF) 

Thermocouple Input: 1°C to 0.1°C (1°F or 0.1°F) 

RTD Input: 0.1°C (0.1°F) 

Number of Selectable Setpoints: 2 

Number of PID Settings: 2 (to be set for each setpoint) 

Setpoint Selection: Voltage-free remote contact (External contact rating: 12VDC or more, 10mA or more) 

Output Type: Time proportional PID (relay output); Time proportional PID (voltage pulse output for driving external SSR); Continuous output PID (4 to 20mA DC output); ON/OFF (relay output) 

Relay Output Contact Rating: 250VAC, 3A (resistive load) 

Voltage Pulse Output: ON Voltage: Approx. 12VDC or more (load resistance: 60 ohms or more); OFF Voltage: 0.1VDC or less 

4 to 20mA DC Output: Load resistance of 600 ohms or less, accuracy of ±0.3% of F.S.; output updating period of 200ms 

Cycle Time: 1 to 240sec (relay and voltage pulse output) 

Output High and Low Limits: -5 to 105% 

Setting Alarm Function Content: Process variable high and low limits, deviation high and low limits, etc. (selectable for each point from among 20 types. Timer function can be specified) 

Alarm Value: 0 to 100% of the set range 

Number of Alarm Settings: 2 

Alarm Output: Relay output contact rating: 250VAC, 1 (resistive load) 

Display: LED lamp display on the front panel 

Operating Ambient Temperature: 0 to 50°C 

Operating Ambient Humidity: 20 to 90% R.H. (non-condensing) 

Operating Temperature Compensation Error: 0 to 50°C: ±1°C 

Magnetic Field: 400 AT/m or less 

Warm-Up Time: 30 min or more 

Ambient Temperature Effect: Input stability: within (±1uV/°C or ±0.01°C, whichever is greater); Output stability: within (4 to 20mA DC) ±0.05%/10V) 

Power Supply Variation: Input stability: within (±1uV/10V or ±0.01°C, whichever is greater); Output stability: within (4 to 20mA DC) ±0.05%/10V) 

Storage Temperature: -25 to 70°C 

Storage Humidity: 5 to 95% R.H. (non-condensing) 

Construction: Dustproof, drip-proof construction (front panel) 

Mounting: Flash mounting 

Case: Plastic molding (ABS resin) 

Dimensions: 96W x 96H x 100D mm 

Weight: Approx. 1kg 

Insulation Resistance: Between each terminal and ground: 20M ohms or more at 500VDC 

Withstand Voltage: Between power terminals and ground: 1500VAC for 1min; Between input terminals and ground: 1000VAC for 1min; Between output terminals and ground: 1500VAC for 1min 

Supply Voltage: 100 to 240VAC (universal power supply) (permissible supply voltage rang: 90 to 250VAC) 

Power Frequency: 50/60Hz common 

Power Consumption: Approx. 12A (100V) 

Memory Protection: Nonvolatile memory