Javelin D
Ɣ
Model PD644 Voltmeter
Instruction Manual
3
INTRODUCTION
The Javelin D is an easy to use digital voltmeter with built-in 4-20 mA
isolated transmitter and RS-485 serial communication capability. The
four front panel buttons provide quick and simple setup and programming.
The optional Form C relays can be used for alarm indication or process
control applications.
The Modbus
®
RTU serial communication upgrade enables the Javelin D
Digital Voltmeter to operate as a Modbus
®
slave in RS-485 multi-point
data acquisition systems.
ORDERING INFORMATION
85-265 VAC
Model
12-36 VDC
Model
Options Installed
PD644-6R3-14
24 VDC Transmitter Supply
PD644-6R5-14
2 Relays, 24 VDC Supply
PD644-7R3-04 None
PD644-7R5-04 2
Relays
All models may be powered from AC or DC. See Specifications for details.
Accessories
Model Description
PDN-MODBUS Modbus
®
RTU upgrade
PDA7485-I
RS-232 to RS-422/485 Isolated Converter
PDA7485-N
RS-232 to RS-422/485 Non-Isolated Converter
PDA8485-I
USB to RS-422/485 Isolated Converter
PDA8485-N
USB to RS-422/485 Non-Isolated Converter
PDX6901
Suppressor (snubber): 0.01
μ
F/470 , 250 VAC
Plastic, steel, and stainless steel NEMA 4 and cast aluminum explosion-
proof enclosures are available to house up to ten meters.
Visit our web site for details on all accessories.
www.
GlobalTestSupply
.com
Find Quality Products Online at:
sales@GlobalTestSupply.com