tr44卫生型温度变送器
tr44卫生型温度变送器 产品详情
详细介绍
一体化rtd热电阻，卫生型结构设计
具有多种过程连接形式和延长颈类型
高灵活性：模块化结构设计、标准接线端子块和用户自定义热电阻插入深度
提供绝大多数常见的ehedg认证卫生型过程连接，仪表的结构设计符合3a卫生型标准
高精度测量：采用符合iec 60751 (a级或更高等级)的pt100温度传感器
可满足防爆区中的测量要求：
- 本安型仪表(ex ia)
- 无火花 (ex na)
一体化温度变送器
相比于不经过温度变送器，而直接接线的测量方式，endress+hauser的一体式温度变送器具有更高的测量精度和更高的测量可靠性。根据实际应用工况，用户可以自由选择下列信号输出模式和通信方式：
4...20 ma模拟输出
hart®
profibus® pa
ff基金会现场总线
应用领域
可用于食品、制药等卫生领域和精细化工行业的测量
温度测量范围: -50...250 °c
承压能力可达 40 bar
防护等级可达 ip 68
技术参数
thermometer
测量原理 resistance temperature detector
characteristic / application metric style
modular temperature assembly
hygienic design
hygienic process connection
with neck
terminal head ta20a - aluminium - cover with screws
ta20b - plastics - screw cover
ta20d - aluminium - hinged cover high
ta20j - ss - deep-drawn w. or w/o. display
ta20r - ss - machined w. screw cover
ta20w - aluminium - cover w. snap fit
ta21e - aluminium - screw cover w. chain
thermowell / protection tube without (not intended to use with thermowell)
insert / probe mineral insulated (mi), flexible
outer diameter protection tube 6,0 mm (0,24'')
8,0 mm (0,31'')
max. immersion length on request up to 1.000,00 mm (39,37'')
material protection tube/thermowell 1.4435 (316l)
process connection hygienic:
conical sealing system g1/2 (metal)
conical sealing system m12x1,5 (metal)
clamp connections acc. to iso 2852 / din 32676
clamp connections tri-clamp / micro-clamp
screwed pipe joint acc. to din 11851
screwed pipe joint acc. to din 11864-1
varivent
sms 1147/8
g1 liquiphant type m
ingold
welded (cylindircal)
welded (spherical)
tip shape straight
reduced
surface roughness ra 0,4 μm (15,7 μin.)
0,8 μm (31,5 μin.)
operating temperature range pt 100:
-50 °c ...200 °c
(-58 °f ...392 °f)
max. process pressure (static) at 20 °c: 50 bar (725 psi)
accuracy class a acc. to iec 60751
1/3 din class b acc. to iec 60751
response time depending on configuration
t50 = 5 s
t90 = 13 s
integration head transmitter yes (4 … 20 ma; hart; profibus pa; foundation fieldbus)
ex - approvals atex
certification gost metrology
fda
ehedg
3a
sil (transmitter only)