Greystone Energy Systems CR3 Series User manual

Page 1
INTRODUCTION
The CR3 Series Cleanroom Monitor was developed specically
to allow for monitoring of conned spaces with accuracy and
reliability.
The CR3C features analog inputs for connecting remote sensors
for monitoring temperature, humidity and pressure (remote
sensors not included). The CR3C is available with output signal
of either Analog, BACnet ® or Modbus. Standard features include
adjustable alarm relays for each parameter, audible/visual alarms,
and large LED displays.
The CR3C is housed in a ush tting stainless-steel front plate that
enables the user to wipe down the unit when necessary.
Figure 1
Figure 2 Figure 3
Figure 1
Figure 2 Figure 3
BEFORE INSTALLATION
Read these instructions carefully before installing and commissioning the cleanroom monitor. Failure
to follow these instructions may result in product damage. Do not use in an explosive or hazardous
environment, with combustible or ammable gases, as a safety or emergency stop device or in any
other application where failure of the product could result in personal injury. Take electrostatic discharge
precautions during installation and do not exceed the device ratings.
MOUNTING
STEP 1 - As illustrated in Figure 1, unscrew four screws
from faceplate, set screws aside, and remove faceplate
from mounting bracket.
Cut hole in wall 210 mm x 167 mm
high. Ensure unit can be secured to
wall stud or equivalent on at least
two sides.
STEP 2 - As illustrated in Figure 2, feed wires through
mounting bracket and conduit connector/cable gland and
secure.
STEP3 - As illustrated in Figure 3, insert mounting bracket
into hole in wall.
210 mm
167 mm
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com
CLEANROOM MONITOR
CR3C Analog - Installation Instructions

Page 2
STEP 4 - As illustrated in Figure 4, insert screws (not included) to secure mounting bracket to studs.
STEP 5 - Remove connectors from packaging box. As illustrated in Figure 5, connect wires to wiring
terminals. Refer to wiring section for terminal identication.
STEP 6 - Match wiring terminals to the labels on the back cover and re-insert the wiring terminals into
the unit. As illustrated in gure 6.
Figure 7 STEP 7 - As illustrated in Figure 7, secure faceplate to
mounting bracket with supplied screws. Route wires to
prevent pinching when installing unit into wall mounting
bracket.
Figure 4 Figure 6
Figure 5
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 3
WIRING
• Deactivate the 24 Vac/dc power supply until all connections are made to the device to prevent
electrical shock or equipment damage.
• Follow proper electrostatic discharge (ESD) handling procedures when installing the device or
equipment damage may occur.
• Use 22 AWG wiring for all connections and do not locate the device wires in the same conduit with
wiring used to supply inductive loads such as motors.
• Make all connections in accordance with national and local codes.
Connect the 24 Vac/dc power supply to the terminals labeled PWR +(power) and - (common) as
shown in Figure 9. This device has a half-wave type power supply so use caution when wiring multiple
devices so that the circuit ground point is the same on all devices and the controller. Use caution if
24 Vac power is used and one side of the transformer is earth-grounded. In general, the transformer
should NOT be connected to earth ground when using devices with RS-485 network connections.
The device is reverse voltage protected and will not operate if connected backwards. Figure 10 shows
network connections. For end of Line (EOL) device place termination resister jumper in ON position, for
all other devices, place jumper in OFF position.
Figure 9
ALARM CONTACTS ANALOG OUTPUTS
SENSOR
BOARD
ALARM CONTACTS
RH-|RH+|TE-|TE+|DP -|DP+ RH-|RHV|RHI|TE-|TEV|TEI|DP -|DPV|DPI
VIN DIG IN
Pressure Analog Output (4-20mA)
Pressure Analog Output (0-5Vdc or 0-10Vdc)
Pressure Analog Output (Ground)
Temperature Analog Output (4-20mA)
Temperature Analog Output (0-5Vdc or 0-10Vdc)
Temperature Analog Output (Ground)
Humidity Analog Output (4-20mA)
Humidity Analog Output (0-5Vdc or 0-10Vdc)
Humidity Analog Output (Ground)
Pressure Relay (+)
Pressure Relay (-)
Temperature Relay (+)
Temperature Relay (-)
Humidity Relay (+)
Humidity Relay (-)
Digital Input (+)
Digital Input (-)
+24Vdc (24Vac)
Common (24Vac)
Pressure Analog Input (Input)
Pressure Analog Input (Ground)
Temperature Analog Input (Input)
Temperature Analog Input (Ground)
Humidity Analog Input (Input)
Humidity Analog Input (Ground)
Figure 10
G I S - +G I S G I S
PWR
- +
DI + DI - 24 VDC / 24 VAC (+) COMMON / 24 VAC (-) 20V POWER (S) ANALOG IN (I) GROUND (G)
PWR DIG IN DP/TE/RH IN
Pressure (+) Pressure (-) TEMPERATURE (+) TEMPERATURE (-) HUMIDITY (+) HUMIDITY (-)
ALARM CONTACTS
123456
DP 4-20mA (DPI) DP 0-5/10VDC (DPV) DP COMMON (DP-) TE 4-20mA (TEI) TE 0-5/10VDC (TEV) TE COMMON (TE-)
ANALOG OUTPUTS
123456789
RH 4-20mA (RHI) RH 0-5/10VDC (RHV) RH COMMON (RH-)
1 2 1 2 1 2 3
ANALOG OUTPUTS
Humidity Analog Input (20V Power)
Temperature Analog Input (20V Power)
Pressure Analog Input (20V Power)
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 4
ALARM RELAYS
The device has three alarm relay outputs. The outputs are Normally Open and will close when an alarm
event occurs. The alarm outputs are assigned to TEMP, RH and DP.
Each alarm can be set to operate as a low alarm, a high alarm, both low and high alarms or be disabled.
For example:
The TEMP Alarm output can be congured as a high alarm by setting TEMP Alarm Operation to High
Alarm. In this case the alarm condition will be set when the temperature exceeds the TEMP Alarm High
Setpoint. Note that alarm hysteresis and alarm on delay will also come into play, described below.
The RH Alarm output can be congured as both low and high alarms by setting RH Alarm Operation to
Both. In this case the alarm condition will be set when the RH goes above the RH Alarm High Setpoint or
below the RH Alarm Low Setpoint.
If any ALARM OPERATION is set to Disable, then that alarm will have no function and the setpoints will
be hidden on the menu.
Each alarm has a hysteresis value and an on delay time associated with it. For high alarms, the alarm
condition is set when the input value exceeds the high setpoint and it is reset when the input value
goes below the setpoint – hysteresis value. For example, if the TEMP ALARM HIGH SETPOINT = 25.0 °C
and TEMP ALARM HYSTERESIS = 0.5 °C, then the alarm condition will set at 25.0 °C and reset at 24.5 °C.
The hysteresis is opposite for TEMP ALARM LOW SETPOINT. The alarm condition will set when the input
value falls below TEMP ALARM LOW SETPOINT and will reset when the input goes above TEMP ALARM
LOW SETPOINT + HYSTERESIS.
Each alarm also has a congurable on delay. When an alarm condition is set a timer is started and the
actual alarm will not get set until the ALARM ON DELAY time has expired. If the alarm condition gets
reset before the time expires, then no alarm is generated.
All three alarm relays operate as self-resetting and non-latching. The input signal must return to non-
alarm condition before the alarm relay returns to the NO state.
ALARM SETPOINTS
Each process variable (TEMP, RH and DP) has both a high and low alarm setpoint. If the alarms are
enabled and the setpoint is not locked, then the user can change the setpoint values within a range.
ALARM LEDS
The TEMP, RH and DP each have a low and high alarm condition. When any alarm condition is set the
corresponding front panel LED will ash. The alarm LEDs mimic the alarm relays. If any alarm is disabled,
then the LED will be disabled also.
BUZZER ALARM
The buzzer alarm can be assigned to any of the TEMP, RH or DP alarms specically, or it can be assigned
to all of them. It can be disabled via BUZZER ASSIGNMENT.
If assigned, the buzzer will activate whenever the associated alarm(s) are triggered.
The buzzer reset can be congured as either manual only or automatic reset with BUZZER RESET.
In manual mode the buzzer can only be silenced by:
• removing the alarm condition or
• by pressing the front panel <SILENCE> key
In automatic reset mode the buzzer can be silenced by:
• removing the alarm condition or
• by pressing the front panel <SILENCE> key or
• automatically when the BUZZER AUTO RESET TIME expires
The buzzer is reset or silenced as described above but the alarm condition will continue to be set, this
function only silences the buzzer. If the alarm condition is reset and then set again, the buzzer will
activate again. The buzzer provides a“beeping”or“chirping”sound, not a continuous tone.
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 5
DIGITAL INPUT
The digital input signal allows detection of a dry-contact type input change. This input could be connected
to a door switch, remote nurse station silence switch, occupancy sensor etc.
The actual program function of the DI can be set with DIGITAL INPUT FUNCTION. The input may be
disabled to have no internal program function, or it may be used as a remote alarm silence with the same
function as the front panel <SILENCE> key, or it may be used as a door freeze function.
The door freeze function can be used to prevent alarms and fast ramps of the analog output when a door
is opened. In this mode, if a digital input from a door switch is detected, then the operation of the device
freezes. This means that no alarms will be generated and the analog outputs are held at the last value
before the door open occurred. The device will sit in this state until the door closes again. There is a small
delay of 10 seconds to allow the room to stabilize again after the door is closed.
ANALOG OUTPUTS
There are three analog output signals to represent TEMP, RH and DP. Select desired output via installer
menu for current (4-20 mA) or voltage output signals. If the analog outputs are set for voltage output, then
the signal type can be set to either 0-5 Vdc or 0-10 Vdc via the Installer Menu. All outputs will set for the
same type.
The direction of the analog output signals may be reversed by using the TEMP OUT DIRECTION (for
example) Installer Menu item. This means that the output signal will be 5-0 V or 20-4 mA instead of 0-5 V or
4-20 mA.
ANALOG INPUTS
The AI objects or registers for TEMP, RH and DP indicate the current value of the temperature, relative
humidity and dierential pressure measurements. Depending on the model type, these values either come
from the on-board or remote sensors, or from remote transmitters connected to the analog inputs.
The actual hardware analog inputs will accept either 0-5 Vdc, 0-10 Vdc or 4-20 mA input signal types from
remote transmitters. The input type is eld selectable via the Installer Menu or over the network and the
input signals are calibrated digitally for < 0.25 % span error during factory calibration.
Both TEMP and RH have network variables to set an oset for eld calibration. These apply to both the
on-board sensors and remote transmitter values. The DP sensor has an auto-zero function initiated by DP
AUTO ZERO or via the Installer Menu. There is no oset to apply to a remote DP transmitter, calibration
must occur at the remote DP transmitter itself.
To accommodate dierent transmitter types, the input scale may be set with network variables. For
example, the AI temperature range may be selected as either 0-35 or 0-50 °C. The pressure range may be
set to ± 250 or ± 500 Pa.
The TEMP, RH and DP values each have response time variable associated with them. They can be set
for fast or slow response. For fast response there is a minimum amount of digital ltering applied to the
measurements so that the sensors react quickly to changes. The response can be changed to slow which
applies a longer period of ltering to the measurement and will slow down the sensor reaction to large
changes. The dierence between fast and slow should be about 5 times.
MIN MAX VALUES
The program maintains the minimum and maximum value of each sensor value. The values may be
displayed via the User Menu and may also be reset via the User Menu.
MISCELLANEOUS
The displays (and associated alarm LEDs) for each process variable may be turned o if necessary using the
Installer Menu items such as TEMP DISPLAY.
Display brightness may be changed from high to low using DISPLAY BRIGHTNESS via the User Menu.
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 6
FRONT PANEL KEYS
There are 4 front panel buttons:
<UP> Used to increase parameter values within a menu.
<DOWN> Used to decrease parameter values within a menu.
<MENU> In normal operation, pressing this button accesses the User Menu and then is used to
step through the menu items. The button is disabled if USER MENU LOCK is set.
<SILENCE> Used to silence the buzzer if it is active.
INSTALLER MENU
The Installer Menu is accessed by pressing and holding the <UP> and <DOWN> buttons in normal
operation at the same time for 5 seconds. This menu is used in the eld to congure parameters such as the
analog output type, etc.
The following parameters are available to be changed. Some items will not be available depending on
other settings.
NOTE : To change a previous setting, return to the initial install menu.
1. Analog Output Type curr, volt (Default = curr)
(Current or Voltage)
2. Volt Output Scale (Only if voltage selected)
5 or 10 (Default = 5)
Start up
When power is rst applied to the device, a specic
sequence of events occurs to test the displays plus
indicate certain parameters.
The sequence is as follows:
• Test all LEDs – all LEDs light for 2 seconds and
then turn o
• Test all display segments – all display segments
light for 2 seconds and then turn o
• Display version # - display“1.00”on one of the
displays for 2 seconds
• Display selected protocol – display“Prot bAC”
or“Prot bUS”
• Display address - display“Addr 003”
• Display baud rate - display“bAUd 9600”
• Buzzer beeps 2 times
• Begin normal operation
OPERATION
c u r r
o u t
V o l t
o u t
5
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 7
3. Analog Input Type
(default = current)
4. Volt Input Scale
(only if voltage selected)
(default = 5 volt)
5. TEMP Display
on, oFF (Default = on)
6. RH Display
on, oFF (Default = on)
7. dP Display
on, oFF (Default = on)
8. Temperature Oset
(Default = 0.0 °C)
(Resolution = 0.5 °C / 1 °F)
9. RH Oset
(Default = 0)
10. DP Auto Zero
(only if DP within 10% range)
11. TEMP Sensor Response Time
(Default = FASt)
12. RH Sensor Response Time
(Default = FASt)
13. dP Sensor Response Time
(Default = FASt)
d i s p
t e
o n
c u r r
i n
V o l t
i n
5
d i s p
r h
o n
d i s p
d p
o n
t E
o f f
0 0
r h
o F F
0 0
d p
0
C a l
r e s p
t e
f a s
r e s p
r h
f a s
r e s p
d p
f a s
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 8
14. TEMP Analog Output Direction
(direct or reverse)
(Default = dIr)
15. RH Analog Output Direction
(direct or reverse)
(Default = dIr)
16. DP Analog Output Direction
(direct or reverse)
(Default = dIr)
17. TEMP Analog Input Range
(input scaling)
(Default = 50C)
18. DP Analog Input Range
(input scaling, Pa)
(Default = 250)
19. Buzzer Assignment
(TEMP, RH, DP, disable or all)
(Default = dP)
20. Buzzer Reset Mode
(manual or auto-reset)
(Default = AUt)
21. Buzzer Auto Reset Time
(Resolution = 1 sec)
(Default = 15 sec)
22. Digital Input Function
(disable, freeze or silence)
(Default = disable)
23. TEMP Alarm Operation
(low, high, both, disable)
(Default = disable)
24. RH Alarm Operation
(low, high, both, disable)
(Default = disable)
o u t
t e
d i r
o u t
r h
d i r
o u t
d p
d i r
a i n
t e
5 0
a i n
d p
2 5 0
b u z z
a s s
d p
b u z z
r s t
a u t
b u z z
1 5
s e c
d l l n
f u n
d i s
a l a r
t e
d i s
A L A r
r h
d i s
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 9
DP Alarm Operation
(low, high, both, disable)
(Default = both)
25. Setpoint Lock
(lock or unlock)
(Default = Un LOC)
26. User Menu
(lock or unlock) (Default = Un LOC)
USER MENU
The User Menu is accessed by pressing the <MENU> key. This menu is used in the eld to congure
parameters such as alarm setpoints. The User Menu may be locked so it cannot be accessed in the eld,
but can be unlocked via BACnet®, Modbus or the Installer menu if necessary using USER MENU LOCK.
If the User Menu is unlocked, then the following parameters are available to be changed.
If SETPOINT LOCK is set, then the setpoints can be viewed but not changed.
1. Temperature Units
C F (Default = C)
2. Pressure Units
(Pascal or mmWc)
PA, StA (Default = PA)
3. TEMP Alarm Low Setpoint (Resolution = 1°)
(Default = 15C or 59F)
4. TEMP Alarm High Setpoint (Resolution = 1°)
(Default = 25C or 77F)
5. TEMP Alarm Hysteresis (Resolution = 0.1°)
(Default = 0.2 °C or 0.4 °F)
6. TEMP Alarm On Delay (Resolution = 1 sec)
(Default = 5 sec)
u s e r
u n
l o c
a l a r
d P
b o t
S e t
u n
L o c
u n i t
t e
c
u n i t
d p
p a
t e s p
l o
1 5
t e h y
0 2
C
t e s p
H i
2 5
t e d l
5
s e C
Not available if STEP 23 in Installer Menu was set disabled“dis”
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com

Page 10
7. RH Alarm Low Setpoint (Resolution is 1 %RH)
(RHALS)
5 to 60% RH
8. RH Alarm High Setpoint (Resolution is 1 %RH)
(RHAHS)
9. RH Alarm Hysteresis (Resolution = 0.1°)
(RHHY)
(Default = 0.2 °C or 0.4 °F)
10. RH Alarm On Delay (Resolution = 1 sec)
(Default = 5 sec)
11. DP Alarm Low Setpoint (Resolutionis 10 Pa or 1 mmWc)
(Default = 0 Pa)
12. DP Alarm High Setpoint (Resolutionis 10 Pa or 1 mmWc)
(Default = 200 Pa)
13. DP Alarm Hysteresis (Resolutionis 10 Pa or 1 mmWc)
(Default = 5 Pa)
14. DP Alarm On Delay (Resolutionis 10 Pa or 1 mmWc)
(Default = 200 Pa)
r h s p
l o
3 0
r h s p
h i
6 5
r h h y
2
r h
r h d l
1 5
s e c
d p s p
L o
0
d p s p
h i
2 0
d p h y
5
p a
d p d l
1 0
s e c
When Pa units selected, setpoint value
displayed has been divided by 10.
When Pa units selected, setpoint value
displayed has been divided by 10.
Not available if STEP 24 in Installer Menu was set disabled“dis”
Not available if STEP 25 in Installer Menu was set disabled“dis”
IN-CR3CXXANA-01 04/20 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: [phone] Web: www.greystoneenergy.com