SPM Series
OPERATION
The ATC Diversified SPM Series Single Channel Seal Failure module is
a specialized control for monitoring the shaft seal of a submersible
pump motor. A leak is detected by sensing the position of a resistive
float switch installed in the seal cavity. When the resistance drops
below the sensitivity rating, the output relay energizes and the LED
illuminates.
E55826
DIMENSIONS (INCHES)
Single Channel Seal Failure Alarm
SPECIFICATIONS
CONTROL VOLTAGE 120 VAC, 50/60 Hz
SWITCH VOLTAGE
9 VDC
ISOLATION
2500 Volts
POWER REQUIRED 2 VA
WIRING
RB-11/PF013A
SENSITIVITY
470 Ω ±10% Fixed
300 Ω to 10K Ω ±10% Adjustable
4.7K Ω to 100K Ω ±10% Adjustable
CONTACT RATING
DPDT, 10 A @ 250 VAC Resistive
RESPONSE TIMES
Operate
Release
LIFE EXPECTANCY
Mechanical 10,000,000 Operations (Minimum)
Electrical 50,000 Operations @ Rated Load
INDICATORS
Red LED illuminates when leak is detected
TEMPERATURE
RATING
Operate
Storage
ENCLOSURE
11-Pin plug-in “A” style enclosure
WEIGHT
8 oz.
MODEL NUMBER
MODEL NUMBER SPM 120 AAA
SENSITIVITY
470 Ω ±10% Fixed
300 Ω to 10K Ω ±10% Adjustable
4.7K Ω to 100K Ω ±10% Adjustable
Diversified Electronics
470
10K
100K
800.727.5646
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15 ms (approximately)
8 ms (approximately)
-4° to 131°F (-20° to +55°C)
-40° to 185°F (-40° to +85°C)
SEAL FAILURE AND OVER-TEMPERATURE MONITORS
DUTY CYCLE Continuous
213
SPM Series
OPERATION
The ATC Diversified Electronics SPM Series
Seal Failure module
is a specialized control for monitoring the shaft seals of
submersible pump motors. Leaks are detected by sensing the
conductivity of the contaminating fluid through probes installed in
the seal cavity. When a seal begins to leak, the seal failure module
energizes one of its SPST output relays indicating that the seal
needs to be replaced before the motor is damaged. The sensitivity
of the probe inputs is field adjustable. When the resistance between
one of the probe inputs and the common connection drops below
the sensitivity setting, the corresponding output relay and LED are
activated.
E55826
Dual Channel Seal Failure Alarm
DIMENSIONS (INCHES)
SPECIFICATIONS
CONTROL VOLTAGE 120 VAC, 50/60 Hz
SWITCH VOLTAGE
9 VDC
ISOLATION
2500 Volts
POWER REQUIRED 2 VA
SEAL FAILURE AND OVER-TEMPERATURE MONITORS
DUTY CYCLE Continuous
214
SENSITIVITY
10K Ω to 25K Ω ±10% Adjustable
4.7K Ω to 100K Ω ±10% Adjustable
CONTACT RATING
(2) SPST-N.O., 5 A @ 120 VAC Resistive
LIFE EXPECTANCY
Mechanical 20 Million Operations
Electrical 50,000 Operations @ Rated Load
INDICATORS
Red LED illuminates when leak is detected
TEMPERATURE
RATING
Operate
Storage
ENCLOSURE
8-Pin plug-in “A” style enclosure
WEIGHT
8 oz.
-4° to 131°F (-20° to +55°C)
-40° to 185°F (-40° to +85°C)
WIRING
MODEL NUMBER
RB-08/PF083A
MODEL NUMBER SPM 120 ABA
SENSITIVITY
10K Ω to 25K Ω ±10% Adjustable
4.7K Ω to 100K Ω ±10% Adjustable
Diversified Electronics
25K
100K
800.727.5646
atcdiversified.com
SPM Series
OPERATION
The non-volatile Latching Temperature Switch relay monitors a
normally-closed-low temperature switch. It incorporates a bistable
relay that retains its state during power failures. LEDs indicate the
status of the relay, and connections for an external reset button are
provided for manual control. The reset inputs of multiple units may
be connected to a single push button as long as proper polarity is
observed when making the connections. Under normal conditions the
temperature switch is closed and the relay is de-energized. When the
temperature switch opens, the relay energizes and latches on until the
temperature switch re-closes and the reset button is pressed. The unit
will function properly with zero to 2k Ω of resistance in series with the
temperature switch.
E55826
Temperature Switch Relay
DIMENSIONS (INCHES)
SPECIFICATIONS
CONTROL VOLTAGE 120 VAC, 50/60 Hz
POWER REQUIRED 2 VA
DUTY CYCLE Continuous
WIRING
ACA
ADA
RB-11/PF113A
RESPONSE TIMES
Operate 10 ms (approximately)
Release 1 SEC (approximately)
LIFE EXPECTANCY
Mechanical 30 Million Operations
Electrical 50,000 Operations @ Rated Load
INDICATORS
SPM-120-ACA Green LED illuminates under
normal conditions Red LED
illuminates under fault conditions
SPM-120-ADA None
TEMPERATURE
SWITCH
Voltage 12 VDC
Current 2 mA max.
TEMPERATURE
RATING
Operate -4° to 131°F (-20° to +55°C)
Storage -40° to 185°F (-40° to +85°C)
ENCLOSURE
11-Pin plug-in “A” style enclosure
WEIGHT
8 oz.
RB-11/PF113A
ORDERING INFORMATION
MODEL
NUMBER
SPM-120-ACA
SPM-120-ADA
Diversified Electronics
800.727.5646
DESCRIPTION
SPDT, 10A @ 250V AC
Latching Temp Switch
DPDT, 10A @ 250V AC
Latching Temp Switch
atcdiversified.com
SEAL FAILURE AND OVER-TEMPERATURE MONITORS
CONTACT
SPM-120-ACA SPDT, 10 A @ 250 VAC,
RATING Resistive, 360 VA Ind.
SPM-120-ADA DPDT, 10 A @ 250 VAC,
Resistive
215
SPM Series
The ATC Diversified Submersible Pump Monitor is a specialized
control for monitoring the shaft seal and stator temperature of
a submersible pump motor. Seal leakage is detected by either a
resistive float switch or a pair of conductive probes installed in the
seal cavity. Over-temperature is detected by a normally-closed-low
temperature switch mounted on the stator. The over-temperature
function incorporates a bistable relay that retains its position
during power failures. For (S) models over-temperature reset
can be configured by changing the reset switch.
IND. CONT. EQ.
496Y
(Model AEE)
ORDERING INFORMATION
MODEL NUMBER
Submersible Pump Monitor
Dual Function Alarm Relay
Dual Function Alarm Relay 120 vac Base Mount.
SPM120AEA25K
Dual Function Alarm Relay 120 vac,
1k to 25 k sensitivity, Plug-in.
SPM24AEA25K
Dual Function Alarm Relay 24v ac/dc,
1k to 25 k sensitivity, Plug-in.
SPM24AEA100K
CONTROL VOLTAGE 120 VAC, 50/60 Hz (Model AEE)
120-240V AC 50/60 Hz (Model AEA)
24V AC/DC (Model AEA)
Dual Function Alarm Relay 24v ac/dc
4.7k to 100 k sensitivity, Plug-in.
SPM120AEA(S)25K Dual Function Alarm Relay 120 vac,
1k to 25 k sensitivity, Plug-in, reset mode selector switch.
SENSOR VOLTAGE 12 VDC (Model AEE)
9V DC (Model AEA)
SPM24AEA(S)25K Dual Function Alarm Relay 24v ac/dc,
1k to 25 k sensitivity, Plug-in, reset mode selector switch.
POWER REQUIRED 4 VA
DUTY CYCLE Continuous
SEAL FAILURE AND OVER-TEMPERATURE MONITORS
SPM120AEE
SPM120AEA100K Dual Function Alarm Relay 120 vac,
4.7k to 100 k sensitivity, Plug-in.
SPECIFICATIONS
216
DESCRIPTION
SENSITIVITY
Leakage 1K Ω to 35K Ω adjustable (Model AEE)
1K Ω to 25K Ω adjustable (Model AEA)
4.7K Ω to 100K Ω adjustable (Model AEA)
Over Temperature Open Circuit
SPM120AEA(S)100K Dual Function Alarm Relay 120 vac, 4.7k to 100k
sensitivity, Plug-in, reset mode selector switch.
SPM24AEA(S)100K Dual Function Alarm Relay 24v ac/dc,
4.7k to 100k sensitivity, Plug-in,
reset mode selector switch.
CONTACT RATING (2) SPDT, 10 A @ 120 VAC Resistive
LIFE EXPECTANCY Mechanical 10 Million Operations
Electrical 100,000 Operations @ Rated Load
INDICATORS
Green LED illuminates under normal conditions
Red LED illuminates when leak is detected
Red LED illuminates on over-temperature
TEMPERATURE
RATING
Operate
Storage
DIMENSIONS (INCHES)
MODEL (AEE)BASE MOUNT
DIMENSIONS (INCHES)
MODEL (AEA)11 PIN PLUG-IN
-4° to 131°F (-20° to +55°C)
-40° to 185°F (-40° to +85°C)
RESPONSE TIMES Leakage Trip
1 SEC
Leakage Reset 1 SEC
Temperature Trip 0.1 SEC
TERMINATIONS
(12) #8-32 Screw Terminals (Model AEE)
ENCLOSURE
Style “E” Lexan® Surface Mounted (Model AEE)
Style "A" 11 Pin Plug-In (Model AEA)
WEIGHT
17 oz. (Model AEE)
RESET
Seal Leakage: When the leakage condition clears
the relay resets automatically
Over Temperature:
1. Remote Manual Reset
2. For "S" type models when reset switch is set in
auto position the unit will be reset by interrupting
supply voltage for 1.5 sec.
Diversified Electronics
800.727.5646
atcdiversified.com
SPM Series
OPERATION
Figure 1 shows the connections for use with a Flygt model FLS float
switch. The leakage sensitivity must be adjusted to 1 k for float switch
applications. If a pair of conductive probes is used to sense seal
leakage, a 100 k resistor is required as shown in Figure 2, and the
sensitivity should be set to the desired value.
The states of the unit’s relay outputs are determined by the series
combination resistance of the leakage and temperature sensors. Under
normal conditions the resistance remains between the leakage and
over-temperature sensitivities, and both output relays are de-energized.
If the temperature switch opens, the over-temperature relay latches on
until the remote reset button is pressed. Two conditions must be met for
reset to occur: power must be applied and the temperature switch must
be closed. If the leakage sensor resistance drops below the leakage
sensitivity setting, the leakage relay energizes. When the leakage
condition clears, the relay resets automatically.
WIRING
E55826
(Model AEA)
MODEL (AEE)(BASE MOUNT)
Figure 1
Figure 2
.
N
WIRING
MODEL (AEA)(PLUG-IN)
PROBES
Figure 1
Figure 2
THERMAL SWITCH
THERMAL SWITCH 100k 1/2W
FLS
6
5
RESET
OVER
TEMP
7
3
9
2
+
OVER
TEMP
7
4
8
3
9
2
10
1
6
5
RESET
SEAL
LEAK
8
4
11
10
1
–
+
11
–
ACCESSORIES: SOCKETS
OT11-PC 11 pin din-rail mount socket.
SEAL
LEAK
SEAL FAILURE AND OVER-TEMPERATURE MONITORS
.
RB-11 11 pin surface mount socket.
Diversified Electronics
800.727.5646
atcdiversified.com
217