Watlow EZ-ZONE RM Limit Module Rev C - Manual (Page 121)

Watlow EZ-ZONE ® RML Module • 118 • Appendix
Operating Range
Input Type Range Low Range High Units
J -210 1200 Deg C
K -270 1371 Deg C
T -270 400 Deg C
N -270 1300 Deg C
E -270 1000 Deg C
R -50 1767 Deg C
S -50 1767 Deg C
B -50 1816 Deg C
C 0 2315 Deg C
D 0 2315 Deg C
F (PTII) 0 1343 Deg C
RTD (100 ohm) -200 800 Deg C
RTD (1000 ohm) -200 800 Deg C
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
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
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 Tech-
niques
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, 24 to 240VAC or 30VDC max.,
5A resistive load, 100,000 cycles at rated load, 120/240 @ 125 VA
or 24VAC @ 25VA pilot duty
• Electromechanical relay, Form C, 24 to 240VAC or 30VDC max.,
5A resistive load, 100,000 cycles at rated load, 120/240 @ 125 VA
or 24VAC @ 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
• 0 to 10VÎ (dc) into a min. 1,000Ω load
• 0 to 20mA into max. 800Ω load
Programmable Application Blocks
Actions (events) 16 total
Alarms 16 total
Limit Loops 12 total
Compare 16 total
Off, greater than, less than, equal, not equal, greater than or
equal, less than or equal
Counters 16 total
Counts up or down loads, predetermined value on load signal.
Output is active when count value equals predetermined target
value
Logic 16 total
Off, and, nand, or, nor, equal, not equal, Latch
Linearization 16 total
Interpolated or stepped relationship
Math 16 total
Off, average, process scale, deviation scale, differential (subtrac-
tion), ratio (divide), add, multiply, absolute difference, min.,
max., square root, sample and hold
Timers 16 total
On Pulse produces output of fixed time on active edge of timer
run signal
Delay output is a delayed start of timer run, off at same time
One Shot oven timer
Retentive measures timer run signal, output on when accumu-
lated time exceeds target
Variable 16 total
User value for digital or analog variable
Note:
These specifications are subject to change without
prior notice.