GENESIS INTERNATIONAL SHERLOCK 402 User manual

SHERLOCK 402
REFRIGERANT GAS LEAK MONITORING AND ALARMING SYSTEM
TYPICAL MACHINE ROOM INSTALLATION
SHER402 P/N 60-0102-00; SHER402-R P/N 60-0102-ZN; SHER402-MB 60-0102-MB 09-10-19
The SHERLOCK 402 (SHER402) Monitoring System
was designed to monitor up to four SHERLOCK Refrigerant
Gas Sensors, activating up to two alarms based upon
user defined alarm level setpoints. The SHERLOCK 402
is compliant with ASHRAE 15-2019 and Mechanical Code
requirements for refrigerant gas monitoring.
NEMA 1 Compliant Enclosure - This enclosure is
intended for indoor use only primarily to provide a degree
of protection against contact with the enclosed equipment.
The enclosure is not designed to provide protection from
water or to be placed in a hazardous environment. Mount
only in Pollution Level 2 environments, ie. environmentally
controlled offices, control rooms, or environmentally con-
trolled machine rooms.
Power Input 85 - 240V AC, 50/60 Hz, 2.5 Amp
Inputs Up to 4 Sherlock Sensors: Cmos, Ir
or
Up to three Sherlock Sensors and
One Oxygen Deprivation Sensor
Outputs Six (6) SPDT, 250VAC / 30V DC,
5.0 amp relays, Two (2) relays each,
Level 1, 2 & System.
Auxiliary 12V DC Output
Optional: Auxilliary (Zone cutoff) relays (SHER402-R)
Optional: Modbus RS485 RTU Communications (-MB)
Setback 24 Hour Time Clock
Two Dry Contact Digital Inputs
Alarms Two Alarm Levels, One Fault Level,
Two SPDT Relay per Level, Fuse
On Common Terminal. One relay on
each alarm level can be silenceable
when in alarm. Zone isolation alarm
relays can activate at either level.
Operating Environment
Temperature 32°F To 122°F (0°C To 50°C)
Humidity 0 To 95% RH Non-condensing
Display 2 Line By 20 Character alphanumer-
ic Backlighted LCD display
Keypad 5 Tactile Pushbuttons: Scroll Up,
Scroll Down, Alarm Silent/Clear,
Select/Edit/Change, Exit
Alarm Indicators
Display Name And Current Reading Of
Alarming Sensor
Buzzer Built-in Piezo-electric, 90db @10ft,
Silenceable
Optional Strobe, Factory Mounted on Unit
Listings ETL, Conforms to UL Std. 61010-1
CAN/CSA C22.2 Std. No. 61010-1
Warranty 15 Month Limited
GENESIS INTERNATIONAL, INC.
Nema/IP Size Electrical Pollution
Model # Rating Inches (mm) Category Protection
SHER402 1 12 x 9.5 x 5 II 2
(305 x 241 x 127)
SHERLOCK
INFRARED
TM
GENESIS INTERNATIONAL INC.
SENSOR for REFRIGERANT GAS
104 0 Fox Ch ase I nd ust ria l Dr. Arn old , MO. 63 010
SENSOR A
POWER LIGHT
SE NSOR M ODU LE
SH E RLO CK
SHERLOCK
INFRARED
TM
GENESIS INTERNATIONAL INC.
SENSOR for REFRIGERANT GAS
104 0 Fox Ch ase I nd ust ria l Dr. Arn old , MO. 63 010
SENSOR B
INFRARED SENSORS OPTIONAL
EXIT
SELECT
CHANGE
PRESS TO
SILENCE
ACTIVE
ALARM
SENSOR
B
SENSOR
A
SENSOR
C
SENSOR
D
SENSOR
F
SENSOR
E
ALARM
SILENCED
WHEN LIT
SENSOR
H
SENSOR
G
ALARM ACTIVE WHEN LIT
REFRIGERANT GAS
MONITORING SYSTEM
SENSOR ALARM STATUS
POWER LIGHT
SE NSOR M ODU LE
SH E RLO CK
POWER LIGHT
SE NSOR M ODU LE
SH E RLO CK
POWER LIGHT
SE NSOR M ODU LE
SH E RLO CK
SHERLOCK
INFRARED
TM
GENESIS INTERNATIONAL INC.
SENSOR for REFRIGERANT GAS
104 0 Fox Ch ase I nd ust ria l Dr. Arn old , MO. 63 010
SENSOR C
SHERLOCK
INFRARED
TM
GENESIS INTERNATIONAL INC.
SENSOR for REFRIGERANT GAS
104 0 Fox Ch ase I nd ust ria l Dr. Arn old , MO. 63 010
SENSOR D

Alarm Level Settings - The SHERLOCK 402 allows you to
set a unique Level 1 and Level 2 Alarm Setpoint for up to 4
sensors. When an Alarm Setpoint is exceeded, alarm relays
activate. Each alarm setpoint has a programmable Delay of 0 to
120 minutes. Sensor readings are required to exceed an Alarm
Setpoint for the programmed amount of time before the control
activates the corresponding alarm relay contacts.
Alarm Indication - Alarms are logged to indicate which sensor
went in and out of alarm and when. The alarm log stores the last
32 alarms. When a sensor is in alarm, an LED for this sensor
on the front panel will light, the on-board beeper will sound and
the display will show the activated alarm level.
Systems Sensor Open Monitoring - The SHERLOCK 402 con-
stantly monitors the wiring to the sensors. If any sensor loses
communication for any reason, “OPEN” will appear on the dis-
play, the alams will activate and the condition logged.
Setback Alarm Settings - In some instances the control may
be expected to function in two different environments. The
SHERLOCK 402 provides a feature called SETBACK to
accommodate alternate alarm conditions. SETBACK provides
a secondary Alarm Setppoint and Delay. The control changes
to the setback parameters when a dry contact closes (i.e. air flow
switch, sail switch or timer switch) or on a daily schedule.
Alarm Relay Contacts - The SHERLOCK 402 provides two
fused SPDT (Single Pole Double Throw) relay outputs for each
for two alarm levels and a system alarm that switch positions
in the event of an alarm condition. Level 1 alarm activates the
K1A and K1B relays. Level 2 alarm activates the K2A and
K2B relays. System alarm activates the 3A and 3B relays.
Level 2 for each individual sensor can be disabled. Relays
K1B, K2B and 3B can be silenced (returned to non-alarm state)
when the SILENT button on the front panel is pushed. The
other alarm relays will remain active until the alarm condition
is cleared. The control can be programmed so the alarm is
cleared automatically when the sensor goes below the alarm
setpoint (UNLATCHED) or stay on until the alarm is manually
reset (LATCHED). The K1/K2 alarm level can be config-
ured so the relays are "Energized to Alarm" or "De-Energized
to Alarm", Common-Normally Open (C-NO) or Common-
Normally Closed (C-NC).
Optional Auxiliary Relays (SHER402-R) - Optional zone isola-
tion alarm relays (ZA - Sensor A Zone, ZB - Sensor B Zone,
ZC - Sensor C Zone, ZD - Sensor D Zone). Each relay can be
programmed to activate by level 1 or level 1 & 2 alarm.
Optional: Modbus RTU (SHER402-MB) - This option adds an
RS485 output that can communicate with a BAS.
1040 Fox Chase Industrial Dr
Arnold, MO 63010
Tel: [phone]
Fax:[phone]
Email: [email protected] Web:www.genesis-international.com
GENESIS INTERNATIONAL, INC.
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