
IM-P505-02-US
Issue 1
85
UTM20 Series Ultrasonic Transit-time Flowmeters
13. Specifications
13.1 System
Liquid Types
Most clean liquids or liquids containing small amounts of suspended solids or gas bubbles
Flow Accuracy
Medium and Large Pipes (RZ, NZ,
WZ, HZ, LZ, YZ, JZ, KZ)
± 0 5% ± 0 0 049 ft/s (0 015 m/s)
Small Pipes (CA-CT, UZ)
1" (25 mm) and larger = ±1% ± 0 03 ft/s (0 009
m/s) ¾" (20 mm) and smaller = ±1% of full scale
Repeatability
0 2% above 1 5 ft/s
Velocity
Medium and Large Pipes
Up to 40 ft/s, depending on pipe and fluid
Small Pipes
Up to 20 ft/s, depending on pipe and fluid
Straight Run
Requirements
10 diameters upstream, 5 diameters downstream from single elbow
Certification and
Compliance
General Safety (all models):
cCSAus, CE, Pollution Degree 2, CE compliance to Low Voltage Directive, 2014/35/EU
U.S./Canada Hazardous Location transmitter and transducers:
Transmitter and transducers (certification option B):
cCSAus Class I
Division 2 Groups ABCD T4
Requires flexible conduit
Not available with UZ, HZ or JZ and KZ (Easy Rail) transducers, Auxiliary Dry Contact
card or units with AquaCUE/BEACON endpoints
Transmitter (certification option R):
cCSAus Ex ec ic nC IIC T4 Gc; Ex tc IIIB T100 °C Dc; Class I, Zone 2, AEx ec ic nC IIC T4
Gc; Zone 22,
AEx tc IIIB T100 °C Dc; Class II, Division 2, Groups FG; Class III
Not available with Auxiliary Dry Contact card or units with AquaCUE/BEACON endpoints
Transducers LZ, NZ and RZ (certification option R):
cCSAus Ex ec IIC T6 Gc; Ex tc IIIB T60 °C Dc; Class I, Zone 2, AEx ec IIC T6 Gc; Zone
22, AEx tc IIIB T60 °C Dc; Class II, Division 2, Groups FG; Class III
Requires flexible conduit
Not available with CA-CT, UZ, HZ or JZ and KZ (Easy Rail) transducers
ATEX Hazardous Location:
Transmitter (certification option V): II 3 G D Ex ec ic nC IIC T4 Gc, Ex tc IIIB T100 °C Dc;
Tamb: -25 to 60 °C
JZ (DTTJ), KZ (DTTK), LZ (DTTL), NZ (DTTN) and RZ (DTTR) Transducers: II 3 G D Ex ec
IIC T6 Gc; Ex tc IIIB T60 °C Dc; Tamb: -25 to 60 °C
Not available with UZ, CA to CT, or HZ transducers; flexible conduit, Auxiliary Dry Contact
card or AquaCUE/BEACON endpoints
IECEx Hazardous Location:
Transmitter (certification option V): Ex ec nC ic IIC T4 Gc; Ex tc IIIC T100 °C Dc; Tamb:
-25 °C to 60 °C
JZ, KZ, LZ, NZ and RZ Transducers: Ex ec IIC T6 Gc; Ex tc IIIB T60 °C Dc; Tamb: -25 to
60 °C
Not available with UZ, CA to CT, or HZ transducers; flexible conduit, Auxiliary Dry Contact
card or AquaCUE/BEACON endpoints