Badger Meter ER-500, Programming Manual

SPECIFICATIONS

LCD

Simultaneously shows Rate and Total 

5 x 7 Dot matrix LCD, STN fluid 

6 Digit rate, 0 5 inch (12 7 mm) numeric 

7 Digit total, 0 5 inch (12 7 mm) numeric 

Engineering unit labels 0 34 inch (8 6 mm)

Annunciators

Alarm 1(

1

), Alarm 2 (

2

), Battery Level (

), RS485 Communications (

COM

)

Power

Battery

3 6V DC lithium “D Cell” gives up to 6 years of service life

Loop

4…20 mA, two wire, 25 mA limit, reverse polarity protected, 7 V DC loop loss 

Auto switching between internal battery and external loop power; includes isolation between 

loop power and other I/O

Inputs

Magnetic Pickup

Frequency Range

1…3500 Hz

Frequency Accuracy

±0 1%

Over Voltage Protection

28V DC

Trigger Sensitivity

30 mVp-p (High) or 60 mVp-p (Low) - (selected by circuit board 

jumper)

Amplified Pulse

Direct connection to amplified signal (pre-amp output from sensor)

Outputs

Analog 4…20 mA 4…20 mA, two-wire current loop 25 mA current limit

Totalizing Pulse

One pulse for each Least Significant Digit (LSD) increment of the totalizer
Pulse Type 

(selected by circuit board 

jumper)

Opto-isolated (Iso) open collector transistor  

Non-isolated open drain FET

Maximum Voltage

28V DC

Maximum Current Capacity  100 mA
Maximum Output 

Frequency

16 Hz

Pulse Width 

30 mS fixed

Status Alarms 

(Advanced Only)

Type 

Open collector transistor Adjustable flow rate with programmable 

dead band and phase 

Maximum Voltage

28V DC

Maximum Current

100 mA

Pull-Up Resistor:

External required (2 2 K ohm minimum, 10 K ohm maximum)

Modbus 

(Advanced Only)

Modbus RTU over RS485, 127 addressable units / 2-wire network, 9600 baud, long integer and 

single precision IEEE754 formats; retrieve: flow rate, job totalizer, grand totalizer, alarm status and 

battery level; write: reset job totalizer, reset grand totalizer

Data Configuration 

and Protection

Two 4-digit user selectable passwords; level one password enables Job Total reset only, level 

two password enables all configuration and totalizer reset functions (Not Applicable on solar 

powered units)

Safety 

Certifications

Class I Division 1, Groups C, D; Class II, Division 1 Groups E, F, G; Class III for US and Canada  Complies with UL 913 and 

CSA C22 2 No  157-92

Entity Parameters

4…20mA Loop V

max

 = 28V DC

I

max

 = 26 mA

C

i

 = 0 5 μF

L

i

 = 0 mH

Pulse Output 

V

max

 = 28V DC

I

max

 = 100 mA

C

i

 = 0 μF

L

i

 = 0 mH

Reset Input 

V

max

 = 5V DC

I

max

 = 5 mA

C

i

 = 0 μF

L

i

 = 0 mH

RS485 

V

max

 = 10V DC

I

max

 = 60 mA

C

i

 = 0 μF

L

i

 = 0 mH

Sensor Input 

V

oc

 = 2 5 V

I

sc

 = 1 8 mA

C = 1 5 μF

L

a

 = 1 65 H

EMC

2004/108/EC

Accuracy

0 05%

Response Time

1…100 seconds response to a step change input, user adjustable

Environmental 

Limits

–22…158° F (–30…70° C); 0…90% humidity, non-condensing;

Materials

Polycarbonate, stainless steel, polyurethane, thermoplastic elastomer, acrylic

Enclosure Ratings

NEMA 4X/IP 66

Specifications

DSY-PM-00028-EN-02

Page 30 

February 2017