Watlow D4T Data Logger
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208
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Chapter 6 Appendix
3 Universal Process/Retransmit Outputs
• Universal process/retransmit, Output range selectable:
- 0 to 10V
Î
(dc) into a min. 4,000Ω load
- 0 to 20mA into max. 800Ω load
Resolution
- dc ranges: 2.5mV nominal resolution
- mA ranges: 5 µA nominal resolution
Calibration Accuracy
- dc ranges: ±15 mV
- mA ranges: ±30 µA
Temperature Stability
- 100 ppm/°C
3 Mechanical Relay Outputs
• 2 Form C relays, 1 Form A relay. Form A shares common with 1 Form C relay
• Each relay is rated at 5A, 24 to 240V
Å
(ac) or 30V
Î
(dc)max., resistive load, 100,000
cycles at rated load. Requires a min. load of 20mA at 24V, 125 VA pilot duty
4 Mechanical Relay Outputs
• Form A, 5A each, 24 to 240V
Å
(ac) or 30V
Î
(dc)max., resistive load, 100,000 cycles
at rated load. Requires a min. load of 20mA at 24V, 125 VA pilot duty
2 Solid-State Relays
• Form A, 10A max. each SSRs combined at 24V
Å
(ac) min., 264V
Å
(ac) max., opto-
isolated, without contact suppression, max. resistive load 10A per output at 240V
Å
(ac), max. 20A per card at 122°F (50°C), max.
• 12A per card at 149°F (65°C)
4 Solid-State Relays
• Two pairs of SSRs, each pair shares a common
• Form A, 24V
Å
(ac) min., 264V
Å
(ac) max., opto-isolated, without contact suppres-
sion, resistive load 2A per output at 240V
Å
(ac), max. See table for max. current
per output
Ambient Temperature
1 Module per Base
2 or More Modules
20°C
2.00A
1.50A
50°C
1.30A
1.00A
6 Digital Input/Output Option - (6 DIO)
• Digital
input update rate 10Hz
- DC voltage
- Max. input 36V @ 3mA
- Min. high state 3V at 0.25mA
- Max. low state 2V
- Dry contact
- Min. open resistance 10KΩ
- Max. closed resistance 50Ω
- Max. short circuit 13mA