Dwyer CAM User Manual
Series CAM Compressed Air Meter
Specifications - Installation and Operating Instructions
4-3/8
3-1/32
[76.99]
[111.13]
3-15/16
[100.01]
Bulletin C-32
M12 x 1
The Series CAM Compressed Air Meter operates by the calorimetric
measuring principle to detect the standard volume flow of operating
compressed air. It is designed specifically to evaluate the current flow
rate and the current consumed quantity in compressed air systems. With
an easily programmable digital display, this unit offers a quick, accurate
readout. The Series CAM is constructed of high-grade materials and is
virtually maintenance free.
Read the product description before installing the unit, to ensure that the
product is suitable for your application without any restrictions. Suitably
qualified personnel must perform work on compressed air equipment.
Ensure that the installation is at a standstill, before mounting components into or removing them from compressed air equipment. Ensure
that neither people nor objects are endangered by moving parts before
commissioning / restart of the installation. Non-adherence to the operating instructions or technical data can lead to personal injury and/or damage to property. In all applications, check compliance of the product
materials with the media to be measured.
Class
1
2
3
4
5
6
Max. Oil
Content
Oil Content
3
mg/m
0.01
0.1
1
5
25
–
Dust Concentration
3
mg/m
0.1
1
5
8
10
–
Particle Size
mg/µm
0.1
1
5
15
40
–
Max. Residual WaterMax. Residual Dust
Residual
Water g/m
0.003
0.117
0.880
5.953
7.732
9.356
Pressure Dew
3
Point °C
-70
-40
-20
+3
+7
+10
Chart 1
C
E
A
B
C
DIMENSIONS
MODEL
CAM-10
CAM-20
CAM-30
A
10-53/64
[275.3]
8-9/32
[210.34]
14-49/64
[375.05]
B
18-45/64
[475.06]
11-13/16
[300.04]
18-45/64
[475.06]
C
2 NPT
1/2 NPT
1 NPT
D
5-1/4
[133.35]
3-1/32
[76.99]
3-31/64
[88.5]
E
Ø2-1/64
[Ø51.2]
Ø41/64
[Ø16.27]
Ø1-5/64
[Ø27.38]
SPECIFICATIONS
Service: Compressed air; Air quality (see chart 1).
Wetted Materials: Stainless Steel (304S15), ceramics, glass passivat-
ed, PEEK, polyester, Fluoroelastomer, anodized aluminum.
Response Time: < 0.1 seconds.
Temperature Limit: 32 to 140°F (0 to 60°C).
Accuracy*: 1.41 ±3% +0.3% FV; 3.44 ±6% MV +0.6% FV.
Pressure Limit: 232 psig (16 bar).
Humidity Limit: 90% RH.
Power Requirements: 19-30 DC.
Output Signal:
Output 1: PNP Open Collector: VOUT(max)=30 VDC /
ISINK(max)= 250mA
Output 2: 4-20mA (scalable) or PNP Open Collector.
Loop Resistance: 500 ohms.
Current Consumption: <100 mA.
Electrical Connections: 4 pin M12(Micro) Cable Connection.
Process Connections: 1/2˝ , 1˝ and 2˝ NPT.
Display: 4-digit alphanumeric red LED
Enclosure Rating: IP65 (NEMA 4X).
Mounting Orientation: Vertical, Horizontal, Side with pipe length fac-
ing left.
Ranges:
CAM-10: 1.4-412.0 SCFM;
CAM-20: 0.2-44.1 SCFM;
CAM-30: 1.0-132.4 SCFM.
Weight:
CAM-10: 12.5 lb;
CAM-20: 2.35 lb;
CAM-30: 4.16 lb.
Agency Approvals: CE.
*Ref. Chart 1 for DIN ISO 8573 Standards
e.g. 1.4.1. implies
1 = 0.01mg/m
4 = 15 µm particle size and 8 mg/m3particle density
1 = -70°C dew pt., 3 mg/m3residual water
3
oil content
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. Box 373 • Michigan City, IN 46361-0373, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
ELECTRICAL CONNECTION
A suitably qualified electrician must connect the unit. Voltage supplied
according to EN50178, SELV, PELV. The device shall be supplied from
an isolating source and protected by an overcurrent device such that the
limited voltage circuit requirements in accordance with UL 508 are met.
Disconnect power before connecting the unit as follows in Figure 2.
Disconnect power before connecting the unit as follows:
Core socket colors
1 = BN, 2 = WH (white), 3 = BU (blue), 4 = BK (black).
Figure 1
INSTALLATION
Location:
Select an area where the process temperature will remain between 32
and 140°F (0 to 60°C). Preferred mounting location is downstream from
the cold dryer, near the load. If compressed air is fed into the main pipe
through parallel pipes, the unit should be mounted in the main pipe.
Position: The unit may be positioned vertically, horizontally, and on its
side with the pipe length left. Avoid positioning the unit on its side with
the pipe length to the right. This may jeopardize the accuracy:
MAINTENANCE
After mounting, wiring and programming check whether unit operates
correctly. Unit is maintenance free for media which will not adhere to
measuring probes. Occasionally, probes should be visually checked for
build-up. If necessary, clean probes with a suitable liquid (e.g. alcoholic
solution). Avoid mechanical damage to measuring probes.
Figure 2
Mounting: To achieve the specified measurement accuracy, the follow-
ing mounting conditions must be adhered to: defined inflow/outflow pipe
lengths, defined flow cross-sectional area, fixed installation depth and
correct positioning of the measuring elements. Integrate the pipe length
so that the direction of flow and the marking arrow show in the same
direction. In case of disturbances at the inflow side additional baffled
pipes are recommended:
Figure 3
Loading...