Precision Digital Corporation ProtEX-MAX PD8-6100, Instruction Manual

Page: 15 / 64

ProtEX-MAX PD8-6100 Strain Gauge, Load Cell, and mV Meter
Instruction Manual
15
Strain Gauge Input
Inputs Field selectable: 0-15 mV, 0-30 mV,
0-150 mV, 0-300 mV, ±15 mV, ±25 mV,
±150 mV, ±250 mV, or Modbus PV (Slave)
Isolated
Sensor Power
Supply
Terminals EX+ & EX-: 10 VDC or
5 VDC

10%, rated @ 25 mA max.
Note: Do not use 24 VDC to power strain
gauge bridge.
Accuracy ±0.03% of calibrated span ±1 count
Minimum
Load
Resistance 14
Ω @ 5 V
28
Ω @ 10 V
Maximum
Excitation
Current 25 mA @ 5 V or 10 V
Temperature
Drift 0.002% of calibrated span/

C max from
0 to 65

C ambient, 0.005% of calibrated
span/

C max from -30 to 0

C ambient
Functions Linear with multi-point linearization
Multi-Point
Linearization 2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale feature)
Low
Cutoff 0.1 to 999,999 (0 disables cutoff function).
Point below at which display always shows
zero.
Decimal Point Up to five decimal places or none:
d.ddddd
,
d.dddd
,
d.ddd
,
d.dd
,
d.d
, or
dddddd
Calibration
Range Input
Range Minimum Span
Input 1 & Input 2
15 mV 0.2 mV
25 mV, 30 mV 0.4 mV
150 mV 2.0 mV
250 mV, 300 mV 4.0 mV
An Error message will appear if the input 1
and input 2 signals are too close together.
Input
Impedance Strain Gauge Bridge: Greater than 10 M
Ω
mV Source: 200 k
Ω
Relays
Rating 4 SPDT (Form C) internal and rated
3 A @ 30 VDC and 125/250 VAC resistive
load; 1/14 HP (
≈
50 W) @ 125/250 VAC for
inductive loads
Noise
Suppression Noise suppression is recommended for
each relay contact switching inductive
loads; see
Switching Inductive Loads on
page 27 for details.
Deadband 0-100% of span, user programmable
High or Low
Alarm User may program any alarm for high or
low trip point.
Unused alarm LEDs and relays may be
disabled (turn off).
Relay
Operation
•
Automatic (non-latching) and/or manual
reset
•
Latching (requires manual
acknowledge) with or without clear
•
Pump alternation control (2 to 4 relays)
•
Sampling (based on time)
•
Off (disable unused relays and enable
Interlock feature)
•
Manual on/off control mode
Relay Reset
(Acknowledge) User selectable via front panel button, F4
digital input, external contact closure on
digital inputs, or through serial
communications.
Time Delay 0 to 999.9 seconds, on & off relay time
delays. Programmable and independent for
each relay
Fail-Safe
Operation Programmable and independent for each
relay.
Note: Relay coil is energized in non-alarm
condition. In case of power failure, relay will
go to alarm state.
Auto
Initialization When power is applied to the meter, relays
will reflect the state of the input to the meter.
USB Connection
Function Programming only
Compatibility USB 2.0 Standard, Compliant
Connector
Type Micro-B receptacle
Cable USB A Male to Micro-B Cable
Driver Microsoft
®
Windows
®
XP/Vista/7/8/10
Power USB port provides power to the meter.
DO NOT apply AC or DC power to the
meter while the USB port is in use.