2 System description
266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB
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Transmitter operational specifications
The following information details the 266 transmitter operational specifications and other information (Table 2).
Table 2: 266 Transmitter specifications
1
Item
Description
Dimensions (approx.)
Width: 3.58" (91 mm) without electrical and RTD connections
Height: 8.51" (216 mm) with vertical flange and 8.25" (210 mm) with horizontal flange
Depth: 4.48" (113 mm) with window display cover
Weight (approx.)
8 lbs. (3.5kg)
Mounting
Wall, pipe or direct
Humidity
Up to 100%; condensation, icing permitted
Operating temperature limits
Compensated:
-40 °F to +160 °F (-40 °C to +71 °C)
Transmitter (ambient):
-60 °F to +185 °F (-51 °C to +85 °C)2
LCD display:
-4 °F to +158 °F (-20 °C to +70 °C)
Process temperature limits: -60 °F to +230 °F (-51 °C to +110 °C)
Analog to digital resolution
24-bit maximum resolution
Electromagnetic compatibility
(EMC)
Emissions: EN 55022 and FCC: Class B, (radiated and conducted)
Immunity: Meets or exceeds EN61326-1, (Criteria A) for
ESD: 8 kV / 6 kV
RFI: 10 V/m
EFT: 2 kV
Lightening surge: 2 kV / 1 kV
Cond: 10 Vrms
Mag: 100 A/m
Low voltage directive
Meets 73/23/EC
Certifications
Explosion-proof: Class I, Div 1, Groups A, B, C, D, T5 Ta = -50 °C to +85 °C
(Canada: Class I, Div 1, Groups B, C, D, T5) (approved Div 1 RTD available)
Flame-proof (US and CA): Class I, Zone 1, (A)Ex d, IIC, T4
Dust ignition proof (US and CA): Class II, III, Div 1, Groups E, F, G, T5
Non-Incendive (US and CA)
: Class I, Div 2, Groups A, B, C, D, T4…T63
Non Sparking (US and CA)
: Class I, Zone 2 (A)Ex nA IIC T4…T63
Flame-proof: ATEX II 1 / 2 G Ex d IIC T6; IECEx Ex d, IIC T6 Ta = -50 °C to +75 °C
Dust protected enclosure: ATEX II 1 / 2 D Ex tD A21 IP 67 T85 °C; IECEx Ex tD A21 IP67 T85 °C,
Ta = -50 °C to +75 °C
Non Sparking: ATEX II 3 G Ex nA IIC T4…T63; IECEx Ex nA IIC T6
Dust Protected enclosure: ATEX II 3 D Ex tD A22 IP67 T85 °C; IECEx Ex tD A22 IP67 T85 °C, Ta =
-50 °C to +75 °C
1
Specifications are based on current testing data and are subject to change.
2
For hazardous atmosphere applications, see the temperature range specified on the relevant certificate or approval.
3
Energy and ambient temperature (Tamb) dependent.
Summary of Contents for 266 MODBUS
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