|
JH1600: Single Trip Alarm
JH1600R: Single Trip Alarm with True RMS Response
JH1620: Dual Trip Alarm
JH1620R: Dual Trip Alarm with True RMS Response
-
Input
Ranges from 50mV to 250Volts,
1mA to 5 Amps
-
Inputs
to 600Vrms available on Special Order
-
Quick-Check
Red/Green Output LEDs
-
True-RMS
Response Available
-
Industry-Standard
Pinouts (11-Pin Socket)
-
AC
or DC Power Options
|
|
The JH1600/1620 Series alarms monitor an AC voltage or current
and provide relay contact HI/LO trip outputs. Fixed-range devices,
their input ranges are preset per your order. True-RMS models
accurately maintain their setpoints even with varying non-sinusoidal
waveforms. Standard models are average-responding, calibrated for
accurate RMS sine wave response.
The alarm trip points are adjustable anywhere within the input
range. Deadbands also are fully adjustable, from 0.25% to 100% of
span. A slide switch, accessible through the top of the enclosure,
selects HI or LO trip operation (on dual alarms, HI/HI, HI/LO or
LO/LO). Red/green LEDs indicate alarm status.
Alarm contacts are rated at 5 amps, 230Vac or 30Vdc. Model JH1600
provides a DPDT relay; Model JH1620, two SPDT relays. AC and DC
power options are available.
ORDERING INFORMATION
| Model
Number: |
Select from the
list above. Add suffix -AC for AC power or -DC for DC power. |
| Input
Range: |
Specify any AC
voltage or current range allowed by the "Input
Capabilities" spec, below. |
| Trip
Points: |
If you would like the trip points to be factory set,
please specify the following for each trip point. Specify HI
or LO trip, specify the setpoint and specify the amount of
deadband required (or specify "minimum deadband").
|
| Power:
|
Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
|
| Relay
Action: |
Standard is Failsafe - the relay is energized under normal
conditions and de-energizes upon alarm or upon loss of power.
Thus, loss of power is seen as an alarm condition. Or specify
Option R (Reverse Acting) – relay is normally not energized
and energizes (pulls in) upon alarm trip. Failsafe is provided
if not specified.
|
INSTALLATION AND CONNECTIONS
These alarms plug into any standard 11-pin
circular ("octal") relay socket. JH Technology offers two
sockets: DS011 for DIN-rail or surface mounting and ST011 for
Snap-Track® mounting (see the Accessories
page).
Pin connections are:
Pin 1: Power (AC or, if DC power
option, DC plus).
Pin 2: No connection.
Pin 3: Power (AC or, if DC power
option, DC minus).
Pin 4: AC signal input.
Pin 5: AC signal input.
Pin 6: Setpoint 1 relay NO contact.*
Pin 7: Setpoint 1 relay moving
contact.*
Pin 8: Setpoint 1 relay NC contact.*
Pin 9: Setpoint 2 relay NO contact.*
Pin 10: Setpoint 2 relay moving
contact.*
Pin 11: Setpoint 2 relay NC contact.*
(*) Notes: NO (normally open) and NC (normally
closed) refer to the relay state when no power is applied. For
Failsafe operation the NO contacts are closed under non-alarm
conditions. The NC contacts close upon alarm and upon loss of
power. The terms Setpoint 1 and Setpoint 2 refer to dual-trip
alarms. For single-trip alarms, both sets of contacts respond to
the one trip point.
APPLICATION NOTE – CURRENT TRANSFORMER INPUTS
When monitoring the output of a current transformer never use
current-input Model JH6020I. Unplugging the module will remove the
transformer’s secondary load, resulting in potentially damaging or
dangerous voltage spikes (up to several hundred volts).
Instead, use voltage-input Model JH6010I with an appropriate
precision external shunt resistor. For 0/5 amps we recommend
specifying a 0/250mVac input range with a 0.05 ohm, 0.1% 3 watt
external shunt. We offer Part No. R0.05/DS008, a precision shunt
resistor assembly pre-assembled to socket DS008. The socket snaps
onto DIN rail or may be surface mounted using screws.
DETAILED SPECIFICATIONS
|
Voltage Input
Capabilities:
|
50mVac minimum span, +/-250Vac maximum
input. Offset ranges are allowed. (Input Impedance:
200Kohms or greater.)
|
|
Input Current
Capabilities:
|
1mA- AC minumum span, +/- 5
Amps AC maximum input. Offset ranges are allowed. (Input
Resistance: Varies with input range. Contact factory for
details.
Caution - see application note above regarding
current transformer inputs. |
|
Input
Frequency:
|
40 Hz to 1kHz. For rated accuracy
|
|
Relay
Contacts:
|
Single Alarm, one DPDT relay. Dual
Alarm, two SPDT relays. Contacts rated 5 Amps resistive,
115/230Vac or 30Vdc. 1/8 HP max inductive load at
115/230Vac. Refer to instructions for contact protection
when switching inductive loads.
|
|
Setpoint
Adjustment:
|
0% to 100% of range.
|
|
Deadband
Adjustment:
|
0.25% to 100% of range.
|
|
Linearity:
|
+/-0.1% of span or better.
|
|
Response
Time:
|
Under 200 milliseconds.
|
|
Isolation:
|
Power, 1,500Vac rms (2,100V peak).
Input/Output, 1,000Vac rms (1,400V peak).
|
|
Guaranteed
Operating Temperature:
|
-10 to +60 deg. C (14 to 140 deg. F).
|
|
Temperature
Stability:
|
+/-0.02% of span per deg. C, or
better.
|
|
Power
Requirements:
|
AC, 115 or 230Vrms, 50/60Hz, 2.5V-A.
DC, 12 or 24V, 2.5W.
|
|
