User guide

Protocol Plus Owner’s Manual ABOUT THIS MANUAL
Version 2 9
Copyright © 2010 by Despatch Industries.
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
means including graphic, electronic, or mechanical methods or photocopying, recording, or information storage and
retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use.
1.5. Specifications
UL, cUL listed:
UL file E136675
CE compliance
to:
• EMC Directive 2004/108/EC
•
Low Voltage Directive 2006/95/EC
Power supply:
• 100 to 240 VAC +10% -15%, 50-60Hz, 30VA Maximum
•
12 to 24 VAC/VDC +/-10%, DC to 60Hz, 30VA Maximum
Temperature:
• Storage -20 to 60°C
•
Operating 0 to 50°C
Humidity:
90% or less, non-condensing
Sensor inputs:
• Type J thermocouple -73°C to 760°C (-100°F to 1400°F)
• Input impedance 1M ohm or greater
• Common mode noise rejection of 140db@60Hz
• Common mode input voltage of +/-12.0 VDC
• Sample rate of at least 1 sample per second
• Stability of +/- 0.5°C per 5°C change in ambient temperature
• Repeatability of +/- 0.5°C, or +/-0.1% of sensed temperature (whichever
is greater)
• Accuracy (@ 77°F +/-0.2 percent of span (+/-3°F)
• Supply Voltage Influence of +/-0.5°C per 10% change in nominal line
voltage
Temperature
display:
• 1 degree resolution (C or F)
• Accuracy after calibration of +/- 1°C, or +/-0.2% of sensed temperature
(whichever is greater) @25°C
• Four-digit seven-segment LCD, 0.43 inches high (11mm)
•
Readout Stability (+/-1°F/10°F Change in ambient temperature)
Message display:
• Two-line, 16 alpha-numeric 5x7 dot matrix characters per line
•
0.2 inches high (5mm)
Time base:
+/- 4 seconds accuracy in 24 hours
Heat control
output:
SSR Drive 24VDC nominal @ 70mA
Relay output:
(plug-in module)
Form A dry contact, rated 3 amps @ 24-264VAC
Retransmit
output:
1 to 5 VDC into > 100K ohm load
Communications:
(plug-in module)
• RS232 Single drop, isolated
• RS422 Multi-drop, isolated
•
RS485 Multi-drop, isolated
Remote inputs:
(plug-in module)
Dry-contact closure type with less than 250 ohm ON resistance
Front panel:
NEMA 4X (with gasket)
Dimensions:
3.57H x 7.24W x 2.84D inches (91H x 184W x 72D mm)
Panel opening:
3.63H x 7.30W inches (92H x 185W mm)