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Chapter 5 specifi cations – Dwyer LCR20 User Manual

Page 18

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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.