Badger Meter Registers - Manual (Page 29)

User Manual
Switch positions
Sensor A Sensor B Voltage Selection
Switch 1 Voltage Switch 2 Voltage Switch 3 Switch 4 Voltage
internal 3 2V DC — — on on 8 2V DC
external switch 3+4 — — on off 12V DC
— — — — off off 2 V DC
• Function switch 1: voltage selection sensor A, terminal 11
• Function switch 2: not available for this model
• Function switch 3+4: the combination of these switches determine the voltage as indicated Do move switch 1 and / or
switch 2 to the OFF position to enable the selected voltage with switch 3+4
Terminal connections ER-420-DC and ER-420-AC
Terminal GND 01 - 02: Power Supply available only with type PD/PF or PM:
Type Sensor Supply
Terminal
GND 01 02
ER-420-DC 24V AC ±15% 8 2, 12, 24V max 400 mA — AC AC
ER-420-DC 24V DC ±15% 8 2, 12, 24V max 400 mA L– L+ —
ER-420-AC 115-230V AC ±15% 8 2, 12, 24V max 400 mA EARTH AC AC
Note PF / PM: The total consumption of the sensors and outputs may not exceed 400 mA@24V
Terminal 05-06 scaled pulse output R1
SETUP 7 determines the pulse output function The maximum pulse frequency of this output is 500 Hz for units with Rev 03
and newer (60 Hz for units earlier than Rev 03) However, with the mechanic output option supplied, be sure that the output
frequency does not exceed 5 Hz or else the lifetime of the relay will be reduced significantly An isolated mechanical relay
output is available for the ER-420-DC and ER-420-AC Maximum switch power is 240V 0 5A per output
Terminal 07-08 analog output (SETUP 7)
• An isolated 4…20 mA signal proportional to the flow rate is available for the ER-420-DC and ER-420-AC
• When the output is disabled, a 3 5mA signal will be generated on these terminals
• Maximum driving capacity is 1000 Ohm @ 30V DC
Page 29 May 2014