Dwyer 1600 - Manual (Page 35)

Rev. 10/98 35 949-1239-3
SPECIFICATIONS
Selectable Inputs: Thermocouple, RTD, current or voltage.
Input Impedance:
Thermocouple = 3 megohms minimum. RTD current = 200 µA.
Current = 249 ohms. Voltage = 5000 ohms.
Set Point Range: Selectable.
Displays: Two 4 digit, 7 segment 0.3" high LED’s. PV red, SV green.
Control Action: Reverse (usually heating), Direct (usually cooling) select-
able for single or dual set point models.
Proportional Band: 6 to 5000 °F or equivalent °C for temperature inputs.
6 to 9990 counts for current or voltage inputs.
Reset Time (Integral): Off or 0.1 to 99.9 minutes.
Rate Time (Derivative): Off or 0.01 to 99.99 minutes.
Cycle Rate: 2 to 80 seconds,
Approach Rate: Off to 99.99 minutes.
On - Off Differential: Adjustable 1° F to full scale in 1° steps (equivalent
°C), or 1 count to full scale in 1 count steps for current and voltage
inputs.
Alarm On - Off Differential: 2° F or equivalent in °C, or 2 counts.
Accuracy: ±0.25% of span, ±1 least significant digit.
Resolution: 1 degree, 0.1 degree, or 1 count.
Line Voltage Stability: ±0.05% over the supply voltage range.
Temperature Stability: 4µV/°C (2.3 µV/°F) typical, 8 µV/°C (4.5 µV°F)
maximum.
Common Mode Rejection: 140 db minimum at 60 Hz.
Normal Mode Rejection: 65 db typical, 60 db at 60 Hz.
Isolation: Relay and SSR outputs are isolated. Current, voltage, and logic
outputs must not share common grounds with the input.
Supply Voltage: 100 to 240 VAC, nom., +10 -15%, 50 to 400 Hz. single
phase; 132 to 240 VDC, nom., +10 -20%. This applies to the instru-
ment power only.
Power Consumption: 5VA maximum.
Operating Temperature: -10 to +55 °C (+14 to 131 °F).
Storage Temperature: -40 to +80 °C (-40 to 176 °F).
Humidity Conditions: 0 to 90% up to 40 °C non-condensing 10 to 50% at
55 °C non-condensing.
Memory Backup: Non-volatile memory. No batteries required.