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XM/XT- 800 Series Level Transmitters 

Small Size – Alloys, Compact Analog Sensors 

XM/XT- 800 Series Level Transmitters 

Quick Specs... 

  • Stainless or Brass Construction 
  • 1/4-inch Resolution 
  • Lengths to 144 in (366 cm) 
  • OEM Configurations Available 
  • Analog Output 


 

 

  Overview    Mounting Types    Float Types    Dimensions    Input / Output    Related Info   
                       

Overview / Design Principle: 

These compact transmitters feature the rugged durability of stainless steel or brass construction. The XM-800 series provides analog output, and can be combined with Gems Digital Bargraph Display and Level Cube Receivers described in this catalog. 


Completely electronic, Gems Liquid Level Transmitters provide reliable and durable remote tank gauging. A wide variety of material combinations provide compatibility for most small to mid-size tanks in both process and OEM applications; for deeper tanks (to 18 feet) look to Gems 36000 and 66000 Series.

Gems experienced engineering and sales staff can provide customized solutions for applications not satisfied by the standard transmitters shown in this catalog. Do not hesiatate to contact Gems if you require a configuration not shown here.
 

 IMPORTANT REED SWITCH PROTECTION INFORMATION: Read before installing.

Mounting Types: 

Each mounting type can be configured with stem lengths (Lo) and float materials indicated in the table below. 

DimXMXT1 
DimXMXT2 
DimXMXT3 
DimXMXT4 
DimXMXT5 
Type 1
1/2" NPT
 
Type 2
1-1/4" NPT
 
Type 3
2" NPT
 
Type 4
3" 150# Flange
 
Type 6
2-1/2" Sanitary Flange
 

  
Type 1 
Type 2 
Type 3 
Type 4 
Type 6 
Stem Material 
Brass or 316 Stainless Steel 
316 Stainless Steel 
Mounting Material 
Brass or 316 Stainless Steel 
Carbon Steel or Stainless Steel 
316 Stainless Steel 
Float Stop Material 
Brass Units: Beryllium Copper Grip Rings; Stainless Steel Units: S.S. ARMCO PH-15-7MO Grip Rings 
Operating Temperature* With J. Box Mounted or XM Signal Conditioners 
Oil: -40°F to +230°F (-40°C to 110°C), Water to +180°F (82.2°C) - Buna N Float
-40°F to +230°F (-40°C to 110°C) - Stainless Steel Float
 
With Stem Mounted Signal Conditioners 
+5°F to 160°F (-15 °C to +70°C) 
Operating Pressure 
Dependent on Float Type; See Next Page 
Overall Length, Max. 
72" (183 cm) Tubing; 144" (366 cm) Pipe (Types 3 & 4 only) 
*Consult factory for higher temperature ranges 

Float Types: 

Dim66400Bun 
Dim66400SF 
Dim66400SS 
ELS1100 FLG 
ELS1100 FLG 
ELS1100 FLG 
164255 
43359 
156490 
43590 
69654 
52084 

Part Number 
Material 
Operating Temperature 
Pressure, PSI, Max.* 
M" Liquid Specific Gravity 
164255† 
Buna N 

Water: to 180° F (82° C)
Oil: 230° F (110° C)
 

150 PSI (10 bar) 
.55 
43359 
Buna N 
Water: to 180° F (82° C)
Oil: 230° F (110° C)
 
150 PSI (10 bar) 
.55 
156490 
Stainless Steel 
300°F (149°C) 
80 PSI (6 bar) 
.70 
43590 
Stainless Steel 
300°F (149°C) 
300 PSI (21 bar) 
.75 
69654 
Buna N 
Water: to 180° F (82° C)
Oil: 230° F (110° C)
 
150 PSI (10 bar) 
.55 
52084 
Stainless Steel 
300°F (149°C) 
300 PSI (21 bar) 
.75 
  Dimensions:
 

DimXMXT800 

Switch actuation levels are determined following the guidelines: 
B 

Overall Length = Inches of Indication + C + X 

C 

Distance From Bottom of Mounting to Float Stop (Customer Specified)
-1/4 " (6.4mm) Minimum
-1-1/4" (31.8mm) Minimum on Type 1, XT Series only.
 

Calculating LengthTo find Overall Length when Inches of Indication is known: Inches of Indication + C* + X = Overall Length 

To find Maximum Inches of Indication when Overall Length is known: Overall Length - C* - X = Maximum Inches of Indication 

*C dimension is determined by customer 

 Float Factor - X 
Float Part Number 
X 
164255 
2.0" (50.8 mm) 
43359 
2.5" (63.5 mm) 
156490 
2.062" (52.4 mm) 
43590 
3.437" (87.3 mm)) 
38609 
2.687" (68.3 mm) 
52084 
3.625" (92.1 mm) 

Input / Output: 

Series 
Input Voltage 
Output Signal 
Part Number 
Electrical Termination 
Compatible Mountings 
Type 1 
Type 3 
Type 4 
XM-800 
10 to 30 VDC 
Proportional Voltage 
_ 
Lead wires (3) #22 AWG, 24" (60.9cm), PTFE Jacket 
 
 
 
XT-800 
8 to 24 VDC* 
0-5 VDC 
51965 
Lead wires #22 AWG, 24" (60.9cm), PTFE Jacket 
 
 
 
14 to 30 VDC* 
0-12 VDC 
51970 
 
 
 
8 to 24 VDC* 
0-5 VDC 
52536 
Junction Box 
 
 
 
15 to 30 VDC* 
0-12 VDC 
52537 
 
 
 
10 to 40 VDC 
4-20mA 
52555 
 
 
 
10 to 40 VDC 
4-20mA 
112300 
Panel Mount with Plug-in Base 
 
 
 
* Stem Mounted 
Additional Product Information: 
Approvals: 
XM-800 and XT-800 Series transmitters may carry the following commercial approvals: 
FM Approved, Explosion-Proof (J-Box and Stainless Steel Float required) 
UL - Recognized 
XM-800 Series Transmitters Only:
CSA Certified 
XT-800 Series Transmitters Only:
FM Approved, Intrinsic Safety (J-Box and Stainless Steel Float required) 
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