| Specifications: |
| Accuracy
For ranges 30” H20 & above: ASME Grade A = ±2/1/2% (±1% of range
over middle half of scale, ±2% elsewhere). For ranges below 30” H20:
±3/1/3% (±1% over middle half of scale, ±3% elsewhere). |
| Case
Sizes 2 ½”, 3 ½”, 4½” diameter. |
| Case
Material Drawn steel phosphatized for rust resistance
and finished with black paint. |
| Case
Style 2 ½”: LM = Plain case with bottom connect =
Marshalltown 83K. CB = Plain case with center back connect =
Marshalltown 83KC. UC = U-Clamp case with center back connect =
Marshalltown 83KB. FF = Three-holed front flanged case with center back
connect = Marshalltown 83KD. 3 ½” & 4 ½”: Plain case with
bottom mount only (LM) = Marshalltown 83K. |
| Diaphragm
& Socket Phosphor bronze diaphragm
soft-soldered to brass socket. |
| Movement
Brass sector and pinion with polycarbonate top & bottom plates. |
| Connection
1/8” & 1/4” NPT. Plug = rubber vacuum cleaner plug (2 ½”
only) = Marshalltown 82K. Hose = three feet of rubber hose (2 ½”
only) = Marshalltown 84K Gas Test Kit. |
| Ranges
Dual Scale with kPa: 0 to 200” H20 VAC; 0 to 300” H2O, 0 to
10 PSI, 0 to 160 Oz/In2. TRIPLE SCALE: 0 to 58 Oz/In2, in H2o, and kPa.
COMPOUND RANGES (consult factory). |
| Dial
Black markings on white background, anodized aluminum. |
| Pointer
Black aluminum with brass bushing. |
| Window
2 ½” & 3 ½”: twist-on Clearlok acrylic window. 4 ½”: flat
acrylic window with steel friction ring. |
| Restrictor
0.013” standard. No restrictor on 0 to 10” H2O range. |
