Chapter 5 specifi cations – Dwyer LCR20 User Manual
Page 18
LCR20 IOM Page 18 of 20 April, 2003
Chapter 5 Specifi cations
Input 1:
Thermocouple: Type J, K, T, R, S, B.
RTD: 100 Ohm Platinum DIN Curve (0.00385 ohms per ohm per
degree C)
Process: 0 to 5 VDC, 250 Ohms impedance.
4 to 20 mA across 250 Ohms.
Cold Junction Accuracy: ±0.2°C @ 25°C ambient.
Cold Junction Error: ±0.2°C @ 25°C ambient.
Input Filtering: Programmable, 0, 2, 4, 8, 16, 32, 64, 128 seconds.
Input 2:
Process: 0 to 5 VDC, 250 Ohms impedance.
4 to 20 mA across 250 Ohms.
Recording:
Chart Size: 254 mm (10 inches)
Recording Accuracy: ±0.5% of span (100 division span)
Sensor Break: Full scale pen < 10 seconds.
Chart Speed: Programmable, 4, 8, 12, 24, 48, 72, 168 hour rotation
(168 hours = 7 days).
Output Relay: Form C (DPDT), 1A @ 240VAC Resistive.
Power:
Line Voltage: 110/220 VAC ±10%, 50~60 Hz.
Common Mode Rejection: >120db @ 60 Hz.
Normal Mode Rejection: 85dB @ 60 Hz.
Power Consumption: 15 VA maximum.
Backup Battery: 9 Volt alkaline (IEC 6LR61 or equivalent).
Operational and Physical:
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -40 to 65°C (-40 to 150°F)
Humidity: 0 to 90% RH (non-condensing)
Vibration: 0.3 to 100 Hz @ 0.2g
Mounting: ±20 degrees of vertical, ±10 degrees of horizontal.
Dimensions: See drawing.
Panel Ratings: NEMA 12X standard, NEMA 4X optional
Moldings: Fire retardant Noryl w/ acrylic window.
Weight: 3.2 kg (7.0 pounds) maximum.