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All specifications are subject to change without notice.

All sales subject to standard terms and conditions.

©2020 Ashcroft Inc. DM-61_panel_meter_ds, RevB_03-03-20

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info@ashcroft.com

1.800.328.8258

DM61 Panel Meter

Data Sheet

PHYSICAL SPECIFICATIONS

Front Panel:

NEMA 4X, IP65 Capable when installed in a

suitable enclosure

Mounting:

Panel (mounting brackets included)

Weight:

9.5 oz

Electrical

Connections:

Removable screw terminal blocks accept 12 to 22

AWG wire, RJ45 for external relays, digital I/O, and

serial communication adapters

UL File Number:

UL & cUL Listed 508 Industrial Control Equipment

NON-WETTED

Enclosure

1

⁄8 DIN, high impact plastic, UL 94V-0, black

PROCESS INPUT

Inputs:

Field selectable: 0-20, 4-20 mA, ±10 V (0-5, 1-5,

0-10 V), Modbus PV (Slave)

Single Input

Conditioning:

Linear, square root, programmable exponent, or

round horizontal tank volume calculation

Multi-Point

Linearization:

2 to 32 points

Programmable

Exponent:

1.0001 to 2.9999

Low-Flow Cutoff:

0-999999 (0 disables cutoff function)

Decimal Point:

0 through 5 places user programable

Calibration Range:

4-20 mA: (Min.) span input 1 & input 2: 0.15 mA

±10 V: (Min.) span input 1 & 2: 0.10 V

An Error message will appear if input 1 and input 2

signals are too close together

Input Impedance:

Voltage ranges: Greater than 500 ohms

Current ranges: 50-100Ω (depending on resettable

fuse impedance)

Input Overload:

Current input protected by resettable fuse, 30

Vdc Max. Fuse resets automatically after fault is

removed

RELAYS

Rating:

2 or 4 SPDT (Form C) internal and/or 4 SPST

(Form A) external

Resistive Load:

3 Amp @ 30 Vdc and 125/250 Vac

Inductive load:

1

⁄14 HP (approx. 50 watts) @ 125/250 Vac

Deadband:

0-100% span, user-defined/field programmable

High or Low Alarm:

Field selectable; user may program for high, low or

disabling alarm function

Relay Operation:

Automatic (non-latching), latching (requires manual

acknowledge), sampling (based on time), pump

alternation control (2 to 8 relays), Off (disable

unused relays and enable interlock feature, manual

on/off control mode)

Relay Reset:

User selectable via front panel buttons or digital inputs

1. Automatic reset only (non-latching), when input

passes the reset point

2. Automatic + manual reset at any time (non-latching)

3. Manual reset only, at any time (latching)

4. Manual reset only after alarm condition has

cleared (latching)

Front panel button or digital input may be assigned

to acknowledge relays programmed for manual

reset

Time Delay:

0 to 999.9 seconds, on and off relay time delays.

Programmable and independent for each relay

Fail-Safe Operation: Programmable and independent for each relay.

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

SERIAL COMMUNICATIONS

Protocol:

Modbus® RTU

Meter Address/

Slave ID:

1-247

Baud Rate:

300-19,200 bps

Transmit Time

Delay:

Programmable between 0-199 msec or transmitter

always on for RS-422

Data:

8 bit (1 start bit, 1 or 2 stop bits)

Parity:

Even, odd, or none with 1 or 2 stop bits

Byte-to-Byte Timeout: 0.01-2.54 seconds

Turn Around Delay:

<2 msec (fixed)

USB CONNECTION

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