Specifications - Process Technology DQ15D Instruction Manual

Specifications

Standard Input:
2 wire- 1000 ohm RTD: TCR (alpha), 0.00385 ohm/ohm/ºC
RTD Self Heating Coefficient: 5º C/w in 0.2 m/s water;
200º C/w in 1 m/s air measurement current, 0.1 to 0.2 mA;
Input Range:
-40 to 1000º F (-40 to 538º C), ºF or ºC field selectable.
Set Point Range:
Selectable throughout the input range.
Sensor Break or Short Protection:
(No sensor short protection with Thermocouple sensor.)
De-energize control output.
Accuracy:
± 0.25% span, ± 1 digit.
Enclosure:
NEMA 12 face suitable for panel mounting (#20 ga. through 1/4" thick
panels).
Display:
4 digit, ½" (nominal) LED display.
Control Function:
ON/OFF Electromechanical Relays.
Control Outputs:
SP1 Set Point (reverse acting). SPDT.
20A resistive @ 240 VAC maximum, 1 H.P. @ 240 VAC maximum.
SP2 Set Point (direct acting). SPDT.
2A resistive @ 240 VAC maximum, 1/20 H.P. @ 240 VAC maximum.
ON/OFF Differential:
Field adjustable 1º (F or C) to 99º.
31
Memory:
Nonvolatile.
Supply Voltage:
85 to 240 VDC or VAC, 50 through 400 Hz, 4VA.
Operating Temperature:
-20 to 140º F (-33 to 60º C), in a sealed NEMA 12 style case.
Input Options:
a. RTD 2 & 3-wire 100 ohm 0.00385 ohm/ohm/ºC or
0.00392 ohm/ohm/ºC
b. Thermocouples (types J, K, T and R) NIST Monograph
175, revision ITS-90
c. Current (4-20 mA DC)
d. Voltage (1-10 VDC)
e. Frequency (0-200 Hz, counts/second), +/- 6 VDC p to p
(up to 30VDC peak with Sw2 "ON")
Output Option:
4-20 mA DC proportional to the process (display) value.
Maximum impedance 450 ohms.
Agency Approvals:
UL/CUL
Important Note:
The DQ15D is designed for indoor installations ONLY.
32