EX 80 Series Electromagnetic Liquid Flow Transmitters

Clark Solutions

EX 80 Series Electromagnetic Liquid Flow Transmitters

Flow rates from 0.54 GPM to 3100 GPM, 1" to 8" Pipe Sizes

DESCRIPTION

The EX81 is an insertion electromagnetic flowmeter for use with conductive liquids in pipe sizes 1" to 3". The EX82 is for use with pipe sizes 4" to 8". With no moving parts, it is highly suitable for corrosive environments and for difficult applications such as those involving changing viscosities and pulsating flows. It is particularly recommended for metering the output of air-driven diaphragm pumps.

Designed for modularity and versatility, the EX81 has a current-sinking pulse output, which can be combined with the appropriate transmitter or indicator depending on the application. For analog output and display of rate and total, an FT420 can be used. For analog only, the AO55 can be mounted directly onto the meter. The PD10 can be used to divide the pulse for pacing chemical metering pumps. If the EX81 is being used with a programmable controller, the output signal can be fed directly with no other conditioning required.

The EX81 requires a special fitting, since it is not depthadjustable. Installation in the fitting ensures correct depth placement in the pipe. Fittings and sensors are available in PVC, brass, and stainless steel.

SPECIFICATIONS

Power: 12 - 24 Vdc, 250 mA
Flow Range: 0.2 – 20 ft/sec (0.06 - 6.09 m/sec)
Fittings: Since the EX80-Series sensors are not adjustable, they must
   be purchased with fittings appropriate to the application. The EX81
   is sized for 1” to 3” fittings. The EX82 is for 4” to 8” fittings. Each
   fitting ensures that the flow sensor is installed at the correct point.
   Every flow sensor and every tee fitting is wet calibrated. Saddle
   fittings are normally not wet calibrated, because they are field-
   installed on a pipe. In PVC however it is possible to order a saddle
   pre-installed on a standard length of pipe, in which case the entire
   assembly is wet-calibrated. For all other saddles, the k-factor (pulses
   per gallon) is established through testing with various standard
   schedules of pipe and provided with the saddle.
Max. Temperature: PVC, 0º – 130º F (55ºC); Brass & SS, 200º F (93ºC)
Pressure: 200 psi (13.8 bar)
Minimum Conductivity: 20 microsiemens/cm
Mechanical Materials: 316 SS, PVC or Brass
Electrodes: Carbon Graphite
Electrode plate: PVDF
Housing: Cast powder-coated aluminum
O-rings: EPDM
Calibration Accuracy: 1% of full scale

PARTS

Parts

The EX81 is sized for fittings of 1” to 3”. The EX82 is for 4” to 8” fittings. Each fitting ensures that the flow sensor is installed at the correct point.

Dimensions

Table 1-Flow Ranges (GPM)

Pipe Size Min. Flow Max. Flow

1" 0.54 54

1-1/2" 1.3 127

2" 2.0 209

3" 4.5 461

4" 8.0 794

6" 18.0 1800

8" 31.0 3120

Table 1-Flow Ranges (GPM)
Pipe Size	Min. Flow	Max. Flow
1"	0.54	54
1-1/2"	1.3	127
2"	2.0	209
3"	4.5	461
4"	8.0	794
6"	18.0	1800
8"	31.0	3120

PVC WORKING PRESSURE VS TEMPERATURE

FITTINGS

Table 2 - Tee Fittings 1" to 4"

Model Material & Style Size code for pipe size

1" 1-1/2" 2" 3" 4"

EF81T-P PVC/male stub 100 150 200 * *

EF81TC-B Bronze/female sweat (copper tube) 100 150 200 300 040

EF81T-B Bronze/female thread 100 150 200 300 040

EF81T-S 304 SS/female thread 100 150 200 - -

EF81T-C Carb-Steel female thread 100 150 200 - -

EF81T-CP CPVC/male stub ends 100 150 200 - -

Option 14 All 316 SS Consult Clark

*Use EF82S-P with Option-16- see Table 3

Model	Material & Style	Size code for pipe size
1"	1-1/2"	2"	3"	4"
EF81T-P	PVC/male stub	100	150	200	*	*
EF81TC-B	Bronze/female sweat (copper tube)	100	150	200	300	040
EF81T-B	Bronze/female thread	100	150	200	300	040
EF81T-S	304 SS/female thread	100	150	200	-	-
EF81T-C	Carb-Steel female thread	100	150	200	-	-
EF81T-CP	CPVC/male stub ends	100	150	200	-	-
Option 14	All 316 SS	Consult Clark
*Use EF82S-P with Option-16- see Table 3

Table 3 - Saddle Fittings 3" to 8"

Model Material & Style Size code for pipe size

3" 4" 6" 8"

EF82S-P **PVC 300 400 600 800

EF82S-F Ductile Iron 300 400 600 800

EF82S-Y Polypro 300 400 600 800

EF83S-B Bronze 300 400 - -

Option 16 Saddle fitting installed on 16" long pipe stub (PVC only)

**PVC saddles are supplied with Buna-N 0-rings only. For chemical service the o-ring must be removed and the saddle must be glued onto the pipe with PVC cement used as directed.

Model	Material & Style	Size code for pipe size
3"	4"	6"	8"
EF82S-P	**PVC	300	400	600	800
EF82S-F	Ductile Iron	300	400	600	800
EF82S-Y	Polypro	300	400	600	800
EF83S-B	Bronze	300	400	-	-
Option 16	Saddle fitting installed on 16" long pipe stub (PVC only)
**PVC saddles are supplied with Buna-N 0-rings only. For chemical service the o-ring must be removed and the saddle must be glued onto the pipe with PVC cement used as directed.

Table 4 - Weld/Braze Fittings 3" to 8"

Model Material & Style Size code for pipe size

3" 4" 6" 8"

EF82W-B Bronze 300 400 600 800

EF82W-C Carbon Steel 300 400 600 800

EF82W-S 316 SS 300 400 600 800

Model	Material & Style	Size code for pipe size
3"	4"	6"	8"
EF82W-B	Bronze	300	400	600	800
EF82W-C	Carbon Steel	300	400	600	800
EF82W-S	316 SS	300	400	600	800

OPTIONAL OUTPUT MODULES

These modules mount directly in a meter enclosure (supplied installed) or remote mount on
a wall or in a panel.

FT420: FT420 indicating transmitter features rate and total display and 4-20 mA output. It also provides scaled pulse output for solenoid driven pump pacing, a pulse pass through for use with a PLC, and a programable flow rate setpoint.

Power: 4-20 mA Loop Powered, 12-32 VDC
Rate Display: 6-digit autorange, 1/2” character height.
Pulse Output: 0.1 sec.open collector pulse (scaled);
high or low alarm; sensor pulse (unscaled)
Input: pulse frequency, +5 VDC K
K Factor Range: 0.050-999999.9
Pulse Output Range: 0.1-200,000 units/pulse
Flow Alarm Output Range: 0.1-999999.99
Enclosure: NEMA 4X die-cast aluminum.

A055: 4-20 mA output module is easily scaled using rotary switches to enter the desired top end of range.

Power: 12-36 VDC
Temperature: 32º-130ºF (0º to 55ºC)
Input: open-collector, solid-state
Min Frequency: 10 Hz (@20 mA)
Max. Frequency: 999.9 Hz
Output: Proportional 4-20 mA
Frequency Setting: 4 Rotary DIP switches
Input Averaging: 2-16 seconds, switch selectable
Response Time: 2-60 seconds 90% full scale.

PD10: Output module is easily scaled using rotary switches to enter the desired number of pulses from paddle sensor to equal one pulse output to pump.

Power: 6-18 VDC
Divider: 1-999
Temperature: 32º-130ºF (0º to 55ºC)
Max. Frequency: 350 Hz (pulses/second)
Output: Open Collector transistor, 100 mS duration.

FT420- Meter Mount

FT420- Wall Mount

A055 Meter Mount
PD10 OUTPUT MODULE
PD10

ORDERING INFORMATION

EXAMPLE: EX81-BFT420MEF81TB

PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS

Model Material Output Fitting

EX81 B = Brass - = Pulse Output (standard) Select Model & Size Code From Tables 2, 3, or 4

IEX82 S = 316 SS FT420M= FT420 (mounted in meter enclosure)

*FT420W= FT420 (remote wall mounting)

A055M= A055 (mounted in meter enclosure)

*A055W= A055 (remote wall mounting)

PD10M= PD10 (mounted in meter enclosure)

PD10W= PD10 (remote wall mounting, requires Option 07)

Options

14= 316 SS Fitting

16= See Table 3

125= Viton® O-rings

40= Submersible (consult Clark)

07 = Seametrics connector (to connect wall mount PD10 to meter)

*Supplied with brackets for wall mounting

PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS
Model	Material	Output	Fitting
EX81	B = Brass	- = Pulse Output (standard)	Select Model & Size Code From Tables 2, 3, or 4
IEX82	S = 316 SS	FT420M= FT420 (mounted in meter enclosure)
		*FT420W= FT420 (remote wall mounting)
A055M= A055 (mounted in meter enclosure)
*A055W= A055 (remote wall mounting)
PD10M= PD10 (mounted in meter enclosure)
PD10W= PD10 (remote wall mounting, requires Option 07)

Options
14= 316 SS Fitting
16= See Table 3
125= Viton® O-rings
40= Submersible (consult Clark)
07 = Seametrics connector (to connect wall mount PD10 to meter)
*Supplied with brackets for wall mounting

For assistance call 978-568-3400