Watlow EZ-ZONE RMH - Manual (Page 154)

Watlow EZ-ZONE ® RMH Module
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151
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Appendix
Input Type
Max
Error
@ 25
Deg C
Accuracy
Range
Low
Accuracy
Range
High
Units
mA ac ±5 0 50
mAmps
AC
Potentiometer,
1K range
±1 0 1000 Ohms
Operating Range
Input Type Range Low Range High Units
J -210 1200 DegC
K -270 1371 DegC
T -270 400 DegC
N -270 1300 DegC
E -270 1000 DegC
R -50 1767 DegC
S -50 1767 DegC
B -50 1816 DegC
C 0 2315 DegC
D 0 2315 DegC
F (PTII) 0 1343 DegC
RTD (100
ohm)
-200 800 DegC
RTD (1000
ohm)
-200 800 DegC
mV 0 50 mV
Volts 0 10 Volts
mAdc
0 20
mAmps
DC
mAac
0 50
mAmps
AC
Resistance, 5K
range
0 5000 Ohms
Resistance,
10K range
0 10000 Ohms
Resistance,
20K range
0 20000 Ohms
Resistance,
40K range
0 40000 Ohms
Resistance,
40K range
0 40000 Ohms
Potentiometer,
1K range
0 1200 Ohms
Thermistor Input
Input
Type
Max Error
@ 25 Deg C
Accuracy
Range
Low
Accuracy
Range
High
Units
Thermis-
tor, 5K
range
±5 0 5000 Ohms
Thermis-
tor, 10K
range
±10 0 10000 Ohms
Thermistor Input (cont.)
Input
Type
Max Error
@ 25 Deg C
Accuracy
Range
Low
Accuracy
Range
High
Units
Thermis-
tor, 20K
range
±20 0 20000 Ohms
Thermis-
tor, 40K
range
±40 0 40000 Ohms
• 0 to 40KΩ, 0 to 20KΩ, 0 to 10KΩ, 0 to 5KΩ
• 2.252KΩ and 10KΩ base at 25°C
• Linearization curves built in
• Third party Thermistor compatibility requirements
Base R
@ 25C
Alpha
Techniques
Beta
THERM
YSI
Thermistor
Curve
2.252K Curve A 2.2K3A 004 A
10K Curve A 10K3A 016 B
10K Curve C 10K4A 006 C
Digital Input
• Update rate 10Hz
• DC voltage
- Max. input 36V at 3mA
- Min. high state 3V at 0.25mA
- Max. low state 2V
Dry Contact
• Update rate 10Hz
• Min. open resistance 10KΩ
• Max. closed resistance 50Ω
Output Hardware
• Electromechanical relay, Form A, 5A, 24 to 240VÅ (ac) or 30VÎ
(dc) max., resistive load, 100,000 cycles at rated load. Requires
a min. load of 20mA at 24V, 120/240 VÅ (ac) 125VA, 24VÅ (ac)
25VA pilot duty
• Digital outputs
- Update rate 10Hz
- Switched DC
- Output voltage 20VÎ (dc)
- Max. supply current source 40mA at 20VÎ (dc) and 80mA at
12VÎ (dc)
- Open Collector
- Switched voltage max.: 32VÎ (dc)
- Max. switched current per output: 1.5A
- Max. switched current for all 6 outputs combined: 8A
Process/Retransmit Outputs, Range Selectable
• - 0 to 10V Î(dc) into a min. 4KΩ load
- 0 to 20mA into max. 400Ω load
Resolution
- dc ranges: 0.2mV nominal
- mA ranges: 0.4µA nominal
Calibration Accuracy
- dc ranges: ±15 mV
- mA ranges: ±30 µA
Temperature Stability
- 100 ppm FSR/°C
Quad Solid-State Relays
• 2A at 20 to 264VÅ (ac) maximum resistive load
• 50 VA 120/240VÅ (ac) pilot duty
Programmable Application Blocks
Actions (events) 24 total
Alarms 24 total